This is a list of philosophical theories. Some of them are major traditions, schools of thought, or belief systems.

Ableism (discrimination) · Abolitionism · Anti-abolitionism · Absolutism · Absolutism · Absurdism · Accidentalism · Acosmism · Actual Idealism · Adoptionism · Adultism (discrimination) · Advaita Vedanta · Aestheticism · Aesthetics · African philosophy · Afrocentrism · Ageism (discrimination) · Agnosticism · Agorism · Agrarianism · Alarmism · Albigensianism · Althusserianism · Altruism · American exceptionalism · Americanism · Analytic philosophy · Anarchism · Anarcho-capitalism · Anarcho-communism · Anarcho-primitivism · Anarcho-syndicalism · Anationalism · Ancient philosophy · Anglicanism · Anglicism · Anglophobia · Aniconism · Animalism · Animism · Anomalous monism · Anthropocentrism · Anthropomorphism · Anthroposophy · Anti-Americanism · Anti-Arabism · Anti-Armenianism · Anti-authoritarianism · Anti-Brahminism · Anti-Canadianism · Anti-capitalism · Anti-Catalanism · Anti-Catholicism-papism · Anti-clericalism · Anti-communism · Anti-consumerism · Anti-corporate activism · Anti-environmentalism · Anti-Europeanism · Anti-evolutionism · Anti-fascism · Anti-Federalism · Anti-foundationalism · Anti-Germanism · Anti-globalization and antisemitism · Anti-globalism · Anti-Hinduism · Anti-colonialism-imperialism · Anti-intellectualism · Anti-Iranianism · Anti-Irishism · Anti-Islamism · Anti-Italianism · Anti-Japanism · Anti-Judaism · Anti-Leninism · Anti-liberalism · Anti-Malayism · Anti-Manchuism · Anti-Mormonism · Anti-nationalism · Anti-Neoism · Anti-patriotism · Anti-pedophile activism · Anti-Persianism · Anti-Polishism · Anti-pornography feminism · Anti-Protestantism · Anti-psychologism · Anti-racism · Anti-realism · Anti-Revisionism · Anti-Romanianism · Anti-Slavism · Anti-Sovietism · Anti-statism · Anti-suffragism · Anti-Turkism · Anti-Zionism · Antidisestablishmentarianism · Antiestablishmentarianism · Antifeminism · Antihomomorphism · Antiisomorphism · Antimilitarism · Antinatalism · Antinaturalism · Antinomianism · Antipositivism · Antisemitism · Antitheism · Antiziganism · Apollinarism · Applied ethics · Arianism · Aristotelianism · Ascriptivism · Atheism · Athorism · Atlanticism · Atomism · Audism (discrimination) · Comtism · Augustinism · Authoritarianism · Autonomism · Averroism · Avicennism · Axiology · Ayyavazhi ·

Ba'athism · Baalism · Bábism · Bagism · Bahá'ísm · Baptist · Beardism (discrimination) · Behaviourism · Bicameralism (psychology) · Bilateralism · Bimetallism · Bioethics · Black nationalism · Bohemianism · Bolshevism · Bonapartism · Breatharianism · Buchmanism · Buddhism · Buddhist philosophy ·

Caesaropapism · Calvinism · Cannibalism (in religion) · Caodaism · Capitalism · Careerism · Carlism · Cartesian Dualism · Cartesianism · Castroism · Catholic Probabilism · Catholicism · Centralism · Centrism · Cessationism · Chartism · Charvaka · Chassidism · Chauvinism · Chemism · Chinese philosophy · Christian existentialism · Christian humanism · Christian philosophy · Christianity · Classicism · Classism (discrimination) · Clericalism · Anti-constructive naturalism · Cognitivism · Coherentism · Collectivism · Collectivism · Anti-collectivism · Collectivist-anarchism · Colonialism · Commercialism · Anti-commercialism · Communalism · Communism · Compassionate Conservatism · Compatibilism and incompatibilism · Compatibilism · Computer ethics · Confirmation holism · Conformism · Confucianism · Confucianism · Connectivism · Consequentialism · Consequentialism · Conservatism · Conservative Judaism · Consociationalism · Constructivism · Consumerism · Contextualism · Continental philosophy · Continuationism · Corporatism · Cosmism · Cosmopolitanism · Cosmotheism · Counter-terrorism · Creationism · Critical rationalism · Anti-anarchism · Anti-electoralism · Anti-socialism · Cubism · Cultism · Cultural relativism · Cultural relativism · Cynicism · Cynicism · Czarism · Czech philosophy ·

Dadaism · Danish philosophy · Daoism · Daoism · Dark romanticism · Darwinism · Decentralism · Deconstruction · Deconstructivism · Decontextualism · Deductive reasoning · Defeatism · Defeatism · Anti-industrialism · Deism · Deism · Democratic transhumanism · Deontologism · Deontology · Determinism · Determinism · Anti-modernism · Deviationism · Dialectical materialism · Dialetheism · Digital philosophy · Disablism (discrimination) · Discordianism · Disestablishmentarianism · Dispensationalism · Docetism · Dogmatism · Dominionism · Donatism · Druidism · Dualism · Dualism · Dvaita · Dynamism ·

Early Islamic philosophy · Eastern philosophy · Egalitarianism · Egocentrism · Egoism · Eliminative materialism · Eliminativism · Elitism · Emanationism · Emergent materialism · Empiricism · Empiricism · Endocannibalism · Environmental ethics · Environmental racism (discrimination) · Environmentalism · Epicureanism · Epicureanism · Epiphenomenalism · Epistemology · Essentialism · Etatism · Eternalism · Ethicism · Ethics · Ethnic nationalism · Ethnocentrism · Eudemonism · Eurocentrism · Eurocommunism · Evidentialism · Evolutionism · Exceptionalism · Exclusivism · Existentialism · Existentialism · Exocannibalism · Expansionism · Experimental philosophy · Externalism · Externalism · Externism (fictional) · Extinctionism · Extremism · Extrinsicism · Extropism ·

Fabianism · Falangism · Falsificationism · Fanaticism · Fascism · Fatalism · Fatalism · Fecundism · Federalism · Feeneyism · Feminism (discrimination, to some extent) · Fenianism · Fetishism · Feudalism · Fictionalism · Fideism · Finitism · Flipism · Pastafarianism · Fordism · Formalism · Foundationalism · Francoism (Gaming) · Freeganism · French materialism · Functionalism (philosophy of mind) · Functionalism (sociology) · Functionalism · Fundamentalism · Futurism ·

Gaullism · Geocentrism · Geoism · Georgism · German idealism · German philosophy · Germanism · Globalism · Gnosticism · Godism · Gradualism · Greek philosophy · Grundyism ·

Hacktivism · Hasidism · Hassidism · Healthism Hedonism · Hedonism · Hegelianism · Heightism Heliocentrism · Hellenism · Henotheism · Hermeneutics · Heterophenomenology · Heterosexism Heterosexualism Hindu philosophy · Hinduism · Historical materialism · Historicism · Hitlerism · Hobbesianism · Holism · Anti-homosexualism · Hooliganism · Humanism · Humanism · Humanistic naturalism · Humanitarianism · Hungryalism

Hussitism ·

Idealism · Identityism · Idolism · Immanentism · Imperialism · Inclusionism · Inclusivism · Incompatibilism · Independentism · Indian logic · Indian philosophy · Individualism · Indonesian philosophy · Induction / Inductionism · Informal logic · Innatism · Institutionalism · Instructivism · Instrumentalism · Integralism · Intellectualism · Internalism · Internationalism (linguistics) · Internationalism (politics) · Interventionism · Intraphilism · Intrinsicism · Intuitionism · Inventionism · Irenicism · Irrealism · Irredentism · Islam · Islamic ethics · Islamic philosophy · Isolationism ·

Jacksonianism · Jacobinism · Jacobitism · Jainism · Jainism · Jansenism · Japanese philosophy · Jewish philosophy · Jingoism · Juche · Judaism · Judeo-Islamic philosophies (8001400) · Just war theory ·

Kahanism · Kantianism · Kashmir Shaivism · Kathenotheism · Kemalism · Keynesianism · Kimilsungism · Korean philosophy ·

Laborism · Laicism · Lamaism · Lamarckism · Lancastrianism · Latitudinarianism · Philosophical Satanism · Left-anarchism · Left-liberalism · Leftism · Legal positivism · Legalism · Leninism · Liberalism · Libertarianism (metaphysics) · Libertarianism · Localism · Logical atomism · Logical positivism · Logical positivism · Logicism · Lollardism · Luddism · Luminism · Lutheranism · Luxemburgism · Lysenkoism ·

Manichaeanism · Manualism · Maoism · Martinism · Marxism-Leninism · Marxism · Revisionism · Masculism · Materialism · Maximalism · McCarthyism · Medism · Menshevism · Mercantilism · Mereological nihilism · Methodism · Militarism · Millennialism · Minarchism · Minimalism · Anti-humanism · Mithraism · Modalism · Modern Islamic philosophy · Modernism · Mohammedanism · Mohism · Molinism · Monarchianism · Monarchism · Monetarism · Monism · Monolatrism · Monophysitism · Monotheism · Moral absolutism · Moral naturalism · Moral objectivism · Moral positivism · Moral rationalism · Moral realism · Moral relativism · Moral skepticism · Moralism · Mormonism · Multiculturalism · Multilateralism · Mysticism ·

National Socialism · Nationalism · Nativism · Naturalism · Naturism · Nazism · Negativism · Neo-aboilitionism · Neo-antisemitism · Neo-bounapartism · Neo-classical_liberalism · Neo-classicism · Neo-colonialism · Neo-Confucianism · Neo-conservatism · Neo-conservativism · Neo-corporatism · Neo-creationism · Neo-druidism · Neo-evangelicalism · Neo-evolutionism · Neo-expressionism · Neo-facism · Neo-fascism · Neo-fascism_and_paganism · Neo-fascist_paganism · Neo-feudalism · Neo-functionalism · Neo-gramscianism · Neo-Hegelianism · Neo-humanism · Neo-imperialism · Neo-impressionism · Neo-institutionalism · Neo-Kantianism · Neo-keynesianism · Neo-leftism · Neo-liberalism · Neo-libertarianism · Neo-logicism · Neo-logism · Neo-luddism · Neo-malthusianism · Neo-marxism · Neo-mccarthyism · Neo-medievalism · Neo-mercantilism · Neo-mutationism · Neo-nazism · Neo-objectivism · Neo-paganism · Neo-patrimonialism · Neo-plasticism · Neo-platonism · Neo-pluralism · Neo-populism · Neo-positivism · Neo-primitivism · Neo-prohibitionism · Neo-publicism · Neo-realism · Neo-romanticism · Neo-Scholasticism · Neo-scholastism · Neo-shamanism · Neo-sovietism · Neo-surrealism · Neo-tribalism · Neo-ultramontanism · Neoplatonism · Nestorianism · Neuroethics · Neurophilosophy · Neurotheology · Neutral monism · New realism · New Wittgenstein · Newtonianism · Nihilism · Nomianism · Nominalism · Non-absolutism · Non-bullshit_Marxism · Non-cognitivism · Non-conformism · Non-consequentialism · Non-determinism · Non-dualism · Non-essentialism · Non-indigenous_organism · Non-interventionism · Non-regressive_autism · Non-theism · Non-trinitarianism · Non-Zionism · Non_cognitivism · Non_theism · Nonconformism · Nonconsequentialism · Nondeterminism · Nondualism · Noneism · Noninterventionism · Nonjuring_schism · Nonreductive_physicalism · Nonsectarianism · Nontheism · Nontrinitarianism · Nontrivial_automorphism · Nudism · Nuwaubianism ·

Objective idealism · Objectivism · Objectivism (Ayn Rand) · Occasionalism · Occultism · Oligarchism · Olympism · Ontologism · Ontology · Operationalism · Anti-unionism · Optimism · Oralism · Orangism · Orientalism · Oscillationism ·

Pabloism · Pacifism · Paganism · Pakistani philosophy · Paleoconservatism · Paleolibertarianism · Pan-Africanism · Pan-Arabism · Pan-Germanism · Pan-Slavism · Pan-Turkism · Pancritical rationalism · Pandeism · Panentheism · Panpsychism · Pantheism · Pantheism · Papism · Parliamentarism · Anti-parliamentarianism · Patriotism · Patripassianism · Pelagianism · Pelmanism · Pentecostalism · Peonism · Perennial philosophy · Perennialism · Perfectionism · Peripatetic · Peronism · Anti-Buddhism · Persianism · Personalism · Perspectivism · Pessimism · Phallocentrism · Pharaonism · Phenomenalism · Phenomenology · Philhellenism · Philistinism · Naturalism · Skepticism · Physicalism · Pietism · Plagiarism · Platonic realism · Platonism · Plenism · Pluralism · Pluralism · Political absolutism · Polycentrism · Polydeism · Polymorphism · Polytheism · Populism · Positivism · Post-anarchism · Post-atheism · Post-behavioralism · Post-capitalism · Post-cognitivism · Post-colonialism · Post-communism · Post-consumerism · Post-egoism · Post-expressionism · Post-feminism · Post-fordism · Post-genderism · Post-humanism · Post-impressionism · Post-industrial_capitalism · Post-industrialism · Post-left_anarchism · Post-leftism · Post-marxism · Post-materialism · Post-minimalism · Post-modern_Classicism · Post-modern_feminism · Post-modernism · Post-monotheism · Post-naturalism · Post-painterly_abstractionism · Post-positivism · Post-post-modernism · Post-postmodernism · Post-processualism · Post-romanticism · Post-structuralism · Post-structuralism · Post-surrealism · Post-theism · Post-zionism · Postanalytic philosophy · Postcolonialism · Posthumanism · Post-modernism · Postmodernism · Poststructuralism · Pragmatism · Praxis school · Predicativism · Preformationism · Presbyterianism · Presentism (philosophy of time) · Presentism · Primitivism · Probabilism · Process philosophy · Progressivism · Projectivism · Property dualism · Protectionism · Protestantism · Proto-capitalism · Pseudophilosophy · Psilanthropism · Puseyism · Putinism · Pyrrhonian skepticism · Pythagoreanism ·

Quietism (philosophy) ·

Racial antisemitism · Racism (discrimination) · Radicalism · Raelism · Rastafarianism · Rationalism · Rationalism · Reactionarism · Reaganism · Realism · Realism · Reconstructivism · Reductionism · Reductive materialism · Reformational philosophy · Regionalism · Relativism · Reliabilism · Religious humanism · Religious Naturalism · Renaissance humanism · Republicanism · Restorationism · Revanchism · Rightism · Roman Catholicism · Romanian philosophy · Romanticism · Rosicrucianism · Anti-Normanism · Russian philosophy ·

Sabellianism · Saint-Simonism · Sandinism · Satanism · Scandinavism · Scepticism · Scholasticism · Illumination school · Scientism · Scotism · Sectarianism · Sectionalism · Secular humanism · Secularism · Semantic holism · Sensualism · Separatism · Sexism (discrimination) · Shachtmanism · Shamanism · Shiism · Shinto- · Sikhism · Simulism · Singularitarianism · Anti-Sinoism · Situationism · Skepticism · Social Darwinism · Social philosophy · Social Realism · Socialism · Socialist realism · Socinianism · Solidarism · Solipsism · Sophism · Sovereigntism · Francoism · Sparticism · Speciesism (discrimination) · Anti-speciesism · Spiritism · Spiritual Atheism · Spiritualism (religious movement) · Stalinism · Stasism · Statism · Stoicism · Structuralism · Anti-stuckism · Subjectivism · Subjective idealism · Sufi metaphysics Sufism · Supersessionism · Supervenience · Surrealism- Syncretism · Syndicalism · Synoptic philosophy ·

Taoism · Taylorism · Teaism · Technological Somnambulism · Teleology · Terrorism · Tetralemma · Thatcherism · Theism · Theology · Theosophy · Thomism · Titoism · Toryism · Totalitarianism · Traditionalist School · Transcendent Theosophy (al-Hikmat al-Muta’liyah) Transcendental Perspectivism · Transcendentalism · Transhumanism · Transsubstantiationism · Trialism · Tribalism · Tricameralism · Trinitarianism · Trivialism · Trotskyism · Tsarism · Turanism · Type physicalism ·

Ultraintuitionism · Ultraleftism · Ultramontanism · Undulationism · Unicameralism · Unificationism · Uniformitarianism · Unilateralism · Unionism · Unitarianism · Unitarism · Universalism · Utilitarian Bioethics · Utilitarianism · Utopianism ·

Anti-vaccinationism · Value-pluralism · Value theory · Veganism · Vegetarianism · Anti-vegetarianism · Verificationism · Vibrationism · Virtue ethics · Vishishtadvaita · Vitalism ·

Wahhabism · Western philosophy · White nationalism · Workerism · Xenocentrism ·

Yezidism

Zabernism · Zabism · Zapatism · Zapitalism · Zarathustrianism · Zaydism · Zeism · Zen Buddhism · Zen Gnosticism · Zen judaism · Zenshiism · Zensufism · Zero morphism · Zeteticism · Zhdanovism · Zhengyi Taoism · Ziganism · Zikism · Zionism · Zionist Revisionism · Zionist Terrorism · Zoasterism · Zohnerism · Zolaism · Zombism · Zoomorphism · Zoophilism · Zoosadism · Zorastrianism · Zoroasterianism · Zoroastianism · Zoroastorianism · Zoroastranism · Zoroastrianism · Zoroastrism · Zurvanism · Zwinglianism · Zwingliism ·

• Glossary of philosophical isms