Western esotericism, also called esotericism and esoterism, is a scholarly term applied as a label to a wide range of groups and schools of thought which share a general air de famille. It refers to a wide array of ideas and movements which have developed within Western society, and which have remained largely distinct from both orthodox Judeo-Christian religion and Enlightenment rationalism. A trans-disciplinary field, esotericism has pervaded various forms of Western philosophy, religion, pseudoscience, art, literature, and music, continuing to have an impact on intellectual ideas and popular culture.

Western esotericism, also called esotericism and esoterism, is a scholarly term applied as a label to a wide range of groups and schools of thought which share a general air de famille. It refers to a wide array of ideas and movements which have developed within Western society, and which have remained largely distinct from both orthodox Judeo-Christian religion and Enlightenment rationalism. A trans-disciplinary field, esotericism has pervaded various forms of Western philosophy, religion, pseudoscience, art, literature, and music, continuing to have an impact on intellectual ideas and popular culture.