Lake Eufaula State Park, State park with lake access in McIntosh County, United States.

Lake Eufaula State Park covers 2,853 acres in McIntosh County, Oklahoma, on Lake Eufaula, 14 miles southwest of Checotah. It has a swimming beach, multiple boat ramps, a marina and tackle shop, the Deep Fork Nature Center, hiking, mountain bike and equestrian trails, and an 18-hole disc golf course on Hummingbird Beach. Camping includes RV and tent sites and three yurts.

The park began in 1965 under a different name and was renamed in 2002 as management evolved and new facilities were added. These changes reflected growing visitor interest in recreational opportunities across the region.

The Deep Fork Nature Center here teaches visitors about native plants and wildlife of Oklahoma through hands-on exhibits and ranger-led programs that run throughout the year.

The park lies 14 miles southwest of Checotah in McIntosh County. Camping is available for RVs and tents, along with three yurts. A swimming beach, multiple boat ramps, a marina and a tackle shop serve lake visitors. An entrance fee per vehicle applies, with passes available.

Fountainhead Lodge, a 202-room state-run resort hotel, stood in the park until the Muscogee (Creek) Nation bought it at a 2005 sheriff's auction and demolished it in 2008. The park's former name, Fountainhead State Park, was changed to Lake Eufaula State Park on November 1, 2002.