Herb Day is an unofficial holiday celebrated the first Saturday of May annually.

Created and organized by the HerbDay Coalition, an organization of five non-profit groups, the holiday encourages people to learn more about herbs and use them more extensively in their daily lives.

The holiday, which first began in 2006 in the United States, brings together herbalists, gardeners, manufacturers of herbal products, culinarians and home cooks, and the general public. It attempts to spread knowledge about the medicinal, culinary and cosmetic benefits of herbs.