Cannabis Laws in Oklahoma

Is weed legal in Oklahoma? Medical only — cannabis is legal for registered medical patients, but not for general adult use.

Oklahoma runs one of the largest and most accessible medical cannabis programs in the country, legal since 2018, with no statutory list of qualifying conditions and widespread dispensary access. Cardholding patients can carry up to 3 ounces in public, keep 8 ounces at home, and grow up to six mature plants. Adult-use legalization (State Question 820) was rejected by voters in March 2023.

Federally, cannabis is still a controlled substance nationwide — but that status is in flux. See where rescheduling stands →

Regulated by Oklahoma Medical Marijuana Authority.

Last reviewed 2026-06-19. This is general information for adults 21+, not legal advice — cannabis laws change frequently. Confirm current rules with Oklahoma Medical Marijuana Authority before acting.