Philosophies: particular schools of thought, styles of philosophy, or descriptions of philosophical ideas attributed to a particular group or culture - listed in alphabetical order.
Ableism - Absolutism - Absurdism - Acquiescence - Activism - Actual Idealism - Actualism - Advaita Vedanta - Aesthetic Realism - Aesthetics - African philosophy - Agential realism - Agnosticism - Agnotology - Altruism - Amor fati - American philosophy - Animism - Anti-imperialism - Anti-psychiatry - Antinatalism - Anti-intellectualism - Anti-realism - Antireductionism - Analytic philosophy - Anarchism - Ancient philosophy - Anthropocentrism - Anomalous monism - Applied ethics - Aristotelianism - Asceticism - Atavism - Atheism - Authoritarianism - Autodidacticism - Averroism - Avicennism - Axiology