Cannabis oil is an extract made from the cannabis plant that contains compounds called cannabinoids, most commonly THC (tetrahydrocannabinol) and/or CBD (cannabidiol).

Depending on its composition, cannabis oil may be used for medical purposes—such as pain relief, reducing inflammation, anxiety management, or seizure control—or for recreational use when it contains THC, which produces psychoactive effects. Its legality and permitted uses vary by country and region.