Cannabis in Saint Lucia is illegal. Cannabis is the only drug grown locally on Saint Lucia, and meets 20% of the local demand, with the remainder coming from the other Caribbean island, predominantly Jamaica and St vincent, and more developed countries such as the United States. Also, a significant portion is shipped in from countries in south America such as Columbia and Venezuela. 
The use of Cannabis is illegal in Saint Lucia and has not been decriminalized. However, legislation has been drafted to reduce the sentencing of persons imprisoned for small quantities of marijuana.
- William R. Brownfield (May 2011). International Narcotics Control Strategy Report: Volume I: Drug and Chemical Control. DIANE Publishing. p. 253. ISBN 978-1-4379-8272-5.
- St. Aimee, Joshua (March 16, 2019). "Cannabis to be decriminalized!". stluciastar.com. St. Lucia STAR. Retrieved May 5, 2019.