Adversus Haereses (Against Heresies) is the standard name of two books on Gnosticism and other Christian heresies.

• A book which actually has the title On the Detection and Overthrow of the So-Called Gnosis written by St. Irenaeus in the first century A.D.
• A similar book by Epiphanius of Salamis which actually has the title Panarion (medicine-chest).