Looking east down one of the old fairways at Acacia Reservation, one of the Cleveland Metroparks in Cleveland, Ohio, in the United States.

The Acacia Reservation is a 155-acre park located in the city of Lyndhurst, Ohio. It has 3.6 miles of paved loop trail and has a large banqueting facility.

This area was originally the Acacia Country Club, a golf course owned and operated by Freemasons for the benefit of other Masons. It opened on May 31, 1921. The course was designed by Donald Ross, a Boston golf expert. Acacia opened a $200,000 ($2.9 million in 2017 dollars) clubhouse on July 4, 1922. Declining membership in the Masons led the club to open membership to all comers. It added a $75,000 ($685,000 in 2017 dollars) pool (with dressing rooms and snack bar) in the summer of 1954. The clubhouse was significantly expanded in 1963. A new portico and stone facade graced the main building, while a building east of the clubhouse housed a grille, men's card room and bar, and new men's lockerroom.

Despite the sale of about 21 acres, the club's declining membership and difficult economic times (which reduced the number of wealthy members) led the club to sell itself in 2012.

Club members sold to the Conservation Fund, and an anonymous donor paid $14.75 million to transfer the land to the Cleveland Metroparks with the stipulation that it be converted back to wilderness.

Restoration began in October 2016, when Metroparks removed a culvert and allowed Euclid Creek to flow freely again. Over the following year, swales were built to stabilize the creek banks; extensive new tree, shrub, and wildflower plantings were made; and a tile drainage system beneath the fairways removed. Little earth-moving was required, as the golf course had made few changes to the topography. The restoration was underwritten by more than $2 million in grants from Ohio EPA, the U.S. Fish and Wildlife Service, and the Conservation Fund.

The restoration of Acacia is the single largest restoration effort in the history of the Euclid Creek watershed. The acquisition of Acacia more than doubled the amount of public park land in the upper creek's watershed.