Robert C. Randall (1948 – June 2, 2001) was an American advocate for medical marijuana and the founder of Alliance for Cannabis Therapeutics.

Randall successfully used a medical necessity defense when he was charged with illegal possession of cannabis to treat his glaucoma.

From 1978 to 1981 Randall and his wife, Alice O’Leary, worked with patients across the country who experienced the therapeutic benefits of cannabis.

In 1981 the couple founded the Alliance for Marijuana Therapeutics which was the leading party during rescheduling hearings before the Administrative Law Judge in front of the DEA.

Closing this program led activists to shift gears and sponsor various State ballot initiatives.