Elizabeth May McClintock (7 July 1912 – 19 October 2004) was a botanist who was born in San Jacinto, California, United States, and grew up near the San Jacinto Mountains. She earned a Bachelor's degree in 1937 and a Master's degree in 1939 from the University of California, Los Angeles and a Ph.D. in botany in 1956 from the University of Michigan. She specialized in taxonomy and distribution of flowering plants, and focused on California natives. She documented invasive plants in California, and compiled information on toxicity of poisonous plants cultivated in the state.
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