The Mission olive is a cultivar of olive developed in California, by Spanish missions along El Camino Real in the late 18th century. Mission trees can reach heights of 40 and 50 feet (12 and 15 m).They produce small fruit, typically of around 4.1 grams (0.14 oz). It has the lowest flesh-to-pit ratio (6.5:1) and greatest cold resistance of any commercial cultivar in California.
The Mission olive has been included in the Ark of Taste, an international catalog of endangered heritage foods maintained by the Slow Food movement.