Snake Den State Park is a public recreation area occupying 1,000 acres (400 ha) on U.S. Route 6 in the town of Johnston, Providence County, Rhode Island.

The Rhode Island Division of Parks and Recreation is headquartered in the former, 22-room Palazzi family farmhouse.

[5] The state purchased the property in 1969 from the Palazzi family, who had preserved the farm in a historic condition that dates back to the 18th century.

The park was established to rescue open space in the greater Providence metropolitan area and to preserve part of the state's farming history.

A 2005 plan by the state to develop a waterpark at the park was defeated by the citizens of Johnston over traffic concerns.