The Morris County Park Commission (MCPC) is a board of commissioners that manages parks, facilities, and historic sites in Morris County, in the U.S. state of New Jersey.

It is the largest county park system in New Jersey. Russel Myers was its first Secretary-Director and Director, serving the system from 1955 until 1983.

The MCPC provides the public with more than 20,000 acres (8,100 ha) for recreational, leisure, and educational use. As of May 2022, it operates 38 facilities including outdoor parks, trails, a marina, an ice skating arena, a horse stable, a historical farm and an operating mill.

Morris County likely followed in the footsteps of other local park commissions. For example, New York City's Central Park Commission was founded in 1856; the Hudson County Park Commission was created in 1892; and the Essex County Park Commission was created in 1895.

Circa 1955, the Morris County Planning board recommended the creation of a Park Commission to the Morris County Board of Chosen Freeholders. The goal of the commission was to provide attractive recreation areas, as well as aid traffic problems and protect limited water resources. Passage of a voter referendum in 1956 formally established a Morris County Park Commission, and this was reported upon in American City. Its first leader was Secretary-Director Russel W. Myers, a landscape architect. That year, the Garden Club of America announced an alliance with the Morris County Park Commission's mission of "acquiring land, preserving natural areas, [and] protecting watersheds and streams from pollution."

In March 1958, the 350-acre (140 ha) Lewis Morris County Park in Morristown was the first park to be dedicated by the MCPC. As of 2021, it has expanded to 2,196 acres (889 ha) with 22.1 miles (35.6 km) of trails. The park alone includes "hiking, off-road biking, and equestrian trails[,] picnic areas[,] athletic fields, a dog park, group camping areas[,] sledding, snowshoeing, and cross-country skiing" and, in the summer, the Sunrise Lake Beach Club, a water obstacle course, a flume, paddleboat riding, and fishing. The park was named for Lewis Morris, the first Governor of New Jersey (according to some sources) while it was part of Britain's Thirteen Colonies.

Since 1962, the Morris County Park Commission developed buffer areas and programs to protect the Great Swamp from urban development. The following, the Morris County Park Commission constructed a nature education center on part of the 556 acres (225 ha) of the Loantaka Brook Reservation.

Circa 1973, Myers, a landscape architect and MCPC's Secretary-Director, had weekly tea for years with Morristown farmer Caroline Foster. In 1973, they arranged for Foster to bequeath her farm estate to the MCPC. In 1974, farmer Caroline Foster designated in her will that Fosterfields would be bequeathed to the MCPC for use as an educational farm and historic site. Upon Foster's death in 1979, the Park Commission received the farm.