The May Arboretum Society is a non-profit organization whose purpose is to promote community support for the Wilbur D. May Arboretum in Rancho San Rafael Regional Park in Reno, Nevada. 

The May Arboretum Society was created to support the Wilbur D. May Arboretum and Botanical Garden. Membership is open to any person, family or group interested in the arboretum and its collections.
 The numerous benefits of membership include volunteer opportunities in the Arboretum, early notification of workshops, educational opportunities, and an informative monthly newsletter.
 Volunteer opportunities include, but are not limited to, docents and tour guides, children's programs, office work, workshop assistants, and gardening work. Training will be provided to all volunteers in all categories.