Hillcrest Park, Public park and historical landmark in Fullerton, United States.

Hillcrest Park is a 37.8-acre park in Fullerton, California, opened in 1922. Its hilly terrain rises to a peak with views west and south. The grounds hold a Works Progress Administration fountain from the 1930s along Harbor Boulevard, a duck pond to its north, picnic areas, trails, restrooms, the Hillcrest Recreation Center, and the wooden Hillcrest Steps leading up from Lions Field.

Hillcrest Park opened in 1922, making it the oldest park in Fullerton. Its historic fountain along Harbor Boulevard was built by the Works Progress Administration in the 1930s and stayed dry from the 1970s until a renovation finished in 2018, which also restored the Great Lawn and added a bridge over Brea Creek. The duck pond was repaired in 2020, and the wooden Hillcrest Steps opened in 2017.

The Orange County Korean War Memorial, a granite wall at the park's edge along Brea Boulevard, lists the names of all 36,591 U.S. service members who died in the Korean War; it was unveiled on Veterans Day 2021. Nearby, the Works Progress Administration fountain of the 1930s sits along Harbor Boulevard, dry from the 1970s until the 2018 renovation.

The park offers free parking, restroom facilities, and picnic areas throughout the grounds for visitor convenience. Multiple levels and walking paths make it easy to explore at your own pace.

The Hillcrest Steps opened in 2017, wooden stairs that climb from Lions Field, the softball fields on the park's west side, to the peak. Small observation decks with benches are staggered along the climb. The Orange County Korean War Memorial, a granite monument unveiled on Veterans Day 2021, stands near Brea Boulevard and lists the 36,591 U.S. service members who died in the Korean War.