Big Cypress Tree State Park is a state park in northwestern Tennessee.

This 330 acre (1.3 km²) natural area lies in the floodplain of the Middle Fork of the Obion River in West Tennessee. It consists of bottomland hardwood forests, featuring species such as bald cypress and tupelo, beaver and fox squirrel.

Big Cypress is a popular park with the Boy Scouts and usually hosts several scout camporees each year as well as individual troop camping trips. Boy Scout leaders have used Big Cypress as a training site for new scout leaders; churches use the park and its picnic shelter for special services and cookouts. Family reunions and field trips are other popular park uses.