Gilroy Gardens is a garden-themed family theme park in Gilroy, California and current location of the world-famous Circus Trees created by Axel Erlandson.

It was founded by Michael and Claudia Bonfante after selling their Nob Hill Foods supermarket chain to build the park. The park was constructed gradually over a period of 25 years. Before it became an amusement park open to the public, it was known as Tree Haven, and was a commercial plant nursery, as well as a recreational facility for employees of Nob Hill Foods. The park opened to the public in June 2001 as Bonfante Gardens. The name was changed to Gilroy Gardens in February 2007. It features 19 rides, 27 attractions and six gardens.

Starting in 2004, the park began its annual holiday celebration, Gilroy Gardens Holiday Lights.

The park struggled with financial difficulty and low attendance the first two years it was open. It closed early for its first two seasons and the park's management debated whether to open at all for the third season. Paramount Parks began to manage the park on contract starting with the 2003 season.