Here is not just a complete list but a EXPANDED list of subjects within the Academic disciplines. Now there is no excuse for you to say I dont know what's out there for me to do!

  1. Natural sciences
  2. Astronomy
  3. Astrophysics
  4. Cosmogony
  5. Cosmology
  6. Behavioral science
  7. Biology
  8. Aerobiology
  9. Anatomy
  10. Comparative anatomy
  11. Human anatomy
  12. Animal communications
  13. Biochemistry
  14. Bioinformatics
  15. Biophysics
  16. Botany
  17. Cell biology
  18. Chronobiology
  19. Cryobiology
  20. Ecology
  21. Human ecology
  22. Landscape ecology
  23. Endocrinology
  24. Entomology
  25. Evolutionary biology
  26. Genetics
  27. Human biology
  28. Human anatomy
  29. Limnology
  30. Linnaean taxonomy
  31. Marine biology
  32. Microbiology
  33. Molecular biology
  34. Mycology
  35. Neuroscience
  36. Ornithology
  37. Paleontology
  38. Parasitology
  39. Pathology
  40. Phycology
  41. Physiology
  42. Human physiology
  43. Virology
  44. Molecular Virology
  45. Epidemial Virology
  46. Xenobiology
  47. Zoology
  48. Cryptozoology
  49. Entomology
  50. Herpetology
  51. Ichthyology
  52. Oology
  53. Ornithology
  54. Primatology
  55. Zootomy
  56. Chemistry
  57. Analytical chemistry
  58. Biochemistry
  59. Materials science
  60. Computational chemistry
  61. Quantum Chemistry
  62. Inorganic chemistry
  63. Organic chemistry
  64. Physical chemistry
  65. Theoretical chemistry
  66. Physics
  67. Acoustics
  68. Astrophysics
  69. Atomic, molecular, and optical physics
  70. Biophysics
  71. Theoretical Physics
  72. Computational physics
  73. Condensed matter physics
  74. Quantum Physics
  75. Cryogenics
  76. Fluid dynamics
  77. Medical Physics
  78. Materials science
  79. Newtonian Dynamics
  80. Optics
  81. Nuclear physics
  82. Plasma physics
  83. Particle physics
  84. Vehicle dynamics
  85. Earth sciences
  86. Environmental science
  87. Geodesy
  88. Geography
  89. Geology
  90. Geochemistry
  91. Geomorphology
  92. Geophysics
  93. Glaciology
  94. Hydrogeology
  95. Hydrology
  96. Meteorology
  97. Mineralogy
  98. Oceanography
  99. Pedology
  100. Paleontology
  101. Planetary science
  102. Sedimentology
  103. Soil science
  104. Mathematics and computer science:
  105. Mathematics
  106. Algebra
  107. Applied mathematics
  108. Analysis
  109. Calculus
  110. Game theory
  111. Geometry
  112. Information theory
  113. Number theory
  114. Probability theory
  115. Statistics
  116. Topology
  117. Computer science
  118. Algorithms
  119. Artificial intelligence
  120. Computer security
  121. Computing
  122. Complexity theory
  123. Cryptography
  124. Distributed systems
  125. Hardware
  126. Programming
  127. Formal methods
  128. Information systems
  129. Robotics
  130. Visual Analytics
  131. Human-computer interaction
  132. Social sciences
  133. Anthropology
  134. Biological anthropology
  135. Forensic anthropology
  136. Gene-culture coevolution
  137. Human behavioral ecology
  138. Human evolution
  139. Population genetics
  140. Primatology
  141. Anthropological linguistics
  142. Synchronic linguistics (or Descriptive linguistics)
  143. Diachronic linguistics (or Historical linguistics)
  144. Educational
  145. Ethnolinguistics
  146. Sociolinguistics
  147. Cultural anthropology
  148. Anthropology of religion
  149. Anthropology of technology
  150. Economic anthropology
  151. Ethnography
  152. Ethnohistory
  153. Ethnology
  154. Ethnomusicology
  155. Mythology
  156. Political anthropology
  157. Psychological anthropology
  158. Urban anthropology
  159. Historical anthropology
  160. Medical anthropology
  161. Communications
  162. Information theory
  163. Interpersonal communications
  164. Marketing
  165. Propaganda
  166. Public affairs
  167. Public diplomacy
  168. Public relations
  169. Technical Writing
  170. Nonverbal communications
  171. Speech communications
  172. Telecommunications
  173. Computer-mediated communications
  174. Telecommunications Systems Management
  175. Economics
  176. Econometrics
  177. Game theory
  178. Human development theory
  179. Labour economics
  180. Microeconomics
  181. Macroeconomics
  182. Resource economics
  183. Ethnic Studies
  184. Asian American Studies
  185. Black Studies or African American Studies
  186. Latino/Latina Studies
  187. Native American Studies
  188. Ethnology
  189. Ethnomusicology
  190. Folklore
  191. History
  192. Ancient history
  193. Diplomatic history
  194. European history
  195. Military history
  196. Modern history
  197. Geography
  198. Cultural geography
  199. Economic geography
  200. Environmental geography
  201. Human geography
  202. Physical geography
  203. Linguistics
  204. Historical linguistics
  205. Interlinguistics
  206. Morphology
  207. Phonetics
  208. Phonology
  209. Semantics
  210. Sociolinguistics
  211. Syntax
  212. Political science
  213. Civics
  214. International relations
  215. Political philosophy
  216. Psephology
  217. Public policy
  218. Psychology
  219. Behavioural psychology
  220. Cognitive psychology
  221. Cognitive science
  222. Differential psychology
  223. Developmental psychology
  224. Evolutionary psychology
  225. Evolutionary developmental psychology
  226. Evolutionary educational psychology
  227. Experimental psychology
  228. Intrapersonal communications
  229. Neuropsychology
  230. Organisational psychology
  231. Psychological astrology or Astropsychology*
  232. Psychology of work
  233. Parapsychology
  234. Psychoanalysis
  235. Social psychology
  236. Semiotics
  237. Vexillology
  238. Sociology
  239. Collective behavior
  240. Computational sociology
  241. Environmental sociology
  242. Interactionism
  243. Economic development
  244. Economic sociology
  245. Feminist sociology
  246. Functionalism
  247. Future studies
  248. Human ecology
  249. Industrial sociology
  250. Media Sociology
  251. Medical sociology
  252. Political sociology
  253. Program evaluation
  254. Public sociology
  255. Pure sociology
  256. Rural Sociology
  257. Science studies
  258. Science and technology studies
  259. Social change
  260. Social demography
  261. Social inequality
  262. Social movements
  263. Social Theory
  264. Sociobiology
  265. Sociology of culture
  266. Sociology of conflict
  267. Sociology of deviance
  268. Sociology of disaster
  269. Sociology of the family
  270. Sociology of markets
  271. Sociology of religion
  272. Sociology of sport
  273. Urban studies or Urban sociology
  274. Visual sociology
  275. Humanities and arts
  276. “Area studies” (sometimes called cultural studies)
  277. American studies
  278. African studies
  279. Asian Studies
  280. Catholic studies
  281. Canadian studies
  282. Chinese studies
  283. Eastern European studies
  284. Esperanto studies
  285. German studies
  286. International Studies
  287. Japanese studies
  288. Latin American studies
  289. Irish studies
  290. Islamic studies
  291. Jewish studies
  292. Russian studies
  293. Art
  294. Art history
  295. Studio art
  296. Classics
  297. Creative writing
  298. Creative nonfiction
  299. Fiction writing
  300. Non-fiction writing
  301. Literary journalism
  302. Poetry composition
  303. Screenwriting
  304. Dance
  305. Choreography
  306. Dance analysis
  307. Dance notation
  308. Dance studies
  309. Ethnochoreology
  310. History of dance
  311. Performance, somatic practice
  312. English Studies
  313. English linguistics
  314. English sociolinguistics
  315. Discourse analysis in English
  316. Composition studies
  317. World Englishes
  318. History of the English language
  319. Teaching English as a Second Language
  320. American literature
  321. African American literature
  322. Jewish American literature
  323. Southern literature
  324. Australian literature
  325. British literature (literature outside England may be written in Celtic languages)
  326. English literature
  327. Northern Ireland literature
  328. Scottish literature
  329. Welsh literature
  330. Canadian literature (a significant amount of Canadian literature is also written in French)
  331. Indian literature
  332. Irish literature
  333. New Zealand literature
  334. Nigerian literature
  335. Film studies and film criticism
  336. Animation
  337. Folklore
  338. History
  339. Ancient history
  340. Diplomatic history
  341. Ethnohistory
  342. European history
  343. History of science and technology
  344. Military history
  345. Modern history
  346. Linguistics
  347. Literature and cultural studies
  348. English studies
  349. Comparative literature
  350. Literatures
  351. English literature
  352. African American literature
  353. American literature
  354. British literature
  355. Indian literature
  356. Irish literature
  357. French literature
  358. Gaelic literature
  359. German literature
  360. Hindi literature
  361. Modern Hebrew Literature
  362. Portuguese & Brazilian literature
  363. Spanish literature
  364. Yiddish literature
  365. other languages' and cultures' literatures
  366. Methods and topics
  367. Literary criticism
  368. Literary theory
  369. Media studies
  370. New media
  371. Poetics
  372. Music
  373. Accompanying
  374. Arts leadership
  375. Chamber music
  376. Church music
  377. Musical composition
  378. Conducting
  379. Choral conducting
  380. Orchestral conducting
  381. Wind ensemble conducting
  382. Early music
  383. Jazz studies and new media
  384. Music education
  385. Music theory pedagodgy
  386. Music history
  387. Music theory
  388. Musicology
  389. Ethnomusicology
  390. Performance and literature
  391. Organ and historical keyboards
  392. Piano
  393. Strings, harp, and guitar
  394. Voice
  395. Woodwinds, brass, and percussion
  396. Orchestral studies
  397. Museology
  398. Mythology
  399. Philology
  400. Philosophy
  401. Aesthetics
  402. Continental philosophy
  403. Eastern philosophy
  404. Epistemology
  405. Ethics
  406. Hermeneutics
  407. History of philosophy
  408. Logic
  409. Metaphysics
  410. Philosophy of language
  411. Philosophy of mathematics
  412. Philosophy of mind
  413. Philosophy of religion
  414. Philosophy of science
  415. Religious studies
  416. Canon law
  417. Catholic studies
  418. Comparative religious studies
  419. Islamic studies
  420. Hadith
  421. Islamic history
  422. Islamic jurisprudence
  423. Qur'an
  424. Jewish Studies
  425. Bible
  426. Halakha
  427. Jewish history
  428. Jewish philosophy
  429. Jewish literature
  430. Mythology
  431. Theology
  432. Astrology
  433. Christology
  434. Divination
  435. Esotericism
  436. Kabbalah
  437. Midrash
  438. Moral theology
  439. Mystical theology
  440. Mysticism
  441. Numerology
  442. Occult topics
  443. Spirituality
  444. Talmud
  445. Western mystery tradition
  446. Theatre
  447. History
  448. Acting
  449. Directing
  450. Design
  451. Dramaturgy
  452. Gender studies
  453. Queer studies
  454. Women's studies
  455. Professions / Applied sciences
  456. Agriculture
  457. Agronomy
  458. Animal science
  459. Agrology
  460. Agricultural economics
  461. Aquaculture
  462. Beekeeping (Apiculture)
  463. Horticulture
  464. Plant science
  465. Business
  466. Accounting scholarship
  467. Business ethics
  468. Finance
  469. Industrial and labor relations
  470. Collective bargaining
  471. Human resources
  472. Organizational Behavior
  473. International and comparative labor
  474. Labor economics
  475. Labor history
  476. Labor statistics
  477. Information systems
  478. Management
  479. Marketing
  480. Manufacturing
  481. Design
  482. City planning, urban planning
  483. Industrial design, product design
  484. Graphic design, interface design
  485. Architecture
  486. Interior design
  487. Landscape architecture
  488. Education
  489. Curriculum and instruction
  490. Elementary Education (Primary education & Intermediate education)
  491. Middle school education
  492. Secondary education
  493. Higher education
  494. Agricultural education
  495. Art education
  496. Bilingual education
  497. Chemistry education
  498. Language education
  499. Legal education
  500. Mathematics education
  501. Medical education
  502. Military education and training
  503. Music education
  504. Peace education
  505. Physical education
  506. Physics education
  507. Reading education
  508. Religious education
  509. Science education
  510. Sex education
  511. Technology education
  512. Vocational education
  513. Educational leadership
  514. Educational psychology
  515. Educational technology
  516. Engineering
  517. Acoustic engineering
  518. Agricultural engineering
  519. Architectural engineering
  520. Bioengineering
  521. Biomaterials engineering
  522. Biomedical engineering
  523. Chemical engineering
  524. Civil engineering
  525. Combat engineering
  526. Computer engineering
  527. Control systems engineering
  528. Ecological engineering
  529. Electrical engineering
  530. Electronic engineering
  531. Microelectronics and semiconductor engineering
  532. Engineering Physics
  533. Environmental engineering
  534. Industrial engineering
  535. Materials engineering
  536. Ceramic engineering
  537. Metallurgical engineering
  538. Polymer engineering
  539. Mechanical engineering
  540. Mining engineering
  541. Nuclear engineering
  542. Ocean engineering
  543. Optical engineering
  544. Quality assurance engineering
  545. Petroleum engineering
  546. Robotics
  547. Safety engineering
  548. Telecommunications engineering
  549. Transportation engineering
  550. Aerospace engineering
  551. Automotive systems engineering
  552. Naval engineering
  553. Marine engineering
  554. Naval architecture
  555. Ergonomics
  556. Family and consumer science
  557. Foodservice management
  558. Hotel administration
  559. Consumer education
  560. Housing
  561. Interior design (also see architecture and environmental design above)
  562. Nutrition (also see medical sciences below)
  563. Textiles
  564. Forestry
  565. Forestry organisation
  566. Silviculture
  567. Health sciences
  568. Medical Sciences
  569. Dentistry
  570. Dental hygiene and Epidemiology
  571. Dental surgery
  572. Restorative dentistry and Endodontics
  573. Orthodontics
  574. Oral and maxillofacial surgery
  575. Pedodontics (Pediatric dentistry)
  576. Periodontics
  577. Prosthodontics
  578. Implantology
  579. Human medicine
  580. Cardiology
  581. Endocrinology and diabetology
  582. Epidemiology
  583. Forensics
  584. Geriatrics
  585. Hematology
  586. Internal medicine
  587. Health science
  588. Nephrology
  589. Neurology
  590. Neurosurgery
  591. Orthopedic surgery
  592. Pathology
  593. Pediatrics
  594. Psychiatry (see also: Anti-psychiatry*)
  595. Rheumatology
  596. Surgery
  597. Midwifery
  598. Nursing
  599. Veterinary medicine
  600. Nutrition (also see family and consumer science above)
  601. Optometry
  602. Pharmacy
  603. Physiotherapy
  604. Public health
  605. Journalism and mass communications
  606. Advertising
  607. Film
  608. Journalism
  609. Broadcast journalism
  610. New media journalism
  611. Print journalism
  612. Public relations
  613. List of journalists
  614. Law
  615. Canon law
  616. Comparative law
  617. Constitutional law
  618. Civil law
  619. Accounting law
  620. Admiralty law
  621. Corporations
  622. Civil procedure
  623. Contracts
  624. Environmental law
  625. International law
  626. Labor law
  627. Property law
  628. Tax law
  629. Torts
  630. Criminal law
  631. Criminal procedure
  632. Criminal justice
  633. Police science
  634. Forensics
  635. Islamic law
  636. Jewish law
  637. Jurisprudence
  638. Manx law
  639. Philosophy of law
  640. Library and information science
  641. Archival Science
  642. Bibliometrics
  643. Citation analysis
  644. Human information behaviors
  645. Informatics
  646. Information architecture
  647. Informetrics
  648. Knowledge organization
  649. Museum informatics
  650. Scholarly communication
  651. Scientometrics
  652. Military science
  653. Artillery
  654. Air force studies
  655. Campaigning
  656. Combat engineering
  657. Comparative military systems
  658. Doctrine
  659. Force planning
  660. Game theory (also see economics above)
  661. Generalship
  662. Joint warfare studies
  663. Leadership
  664. Logistics
  665. Military ethics
  666. Military history
  667. Military intelligence
  668. Military law
  669. Military medicine
  670. Naval science
  671. Naval engineering
  672. Naval tactics
  673. Naval architecture
  674. Weapons systems
  675. Special operations and low intensity conflict
  676. Strategy
  677. Tactics
  678. Naval tactics
  679. Public affairs and community service
  680. Criminal justice
  681. Corrections
  682. Nonprofit administration
  683. Parks and recreation management
  684. Public administration
  685. Industrial and labor relations
  686. Social work
  687. Gerontology