Hillside Cemetery is located on Mulberry Street in Middletown, New York, United States.

Opened in 1861, it was designed in the rural cemetery style by Calvert Vaux and Frederick Law Olmsted, later noted for their collaboration on Central Park.

Many of Middletown's prominent citizens of the late 19th century were buried there, including three Civil War winners of the Medal of Honor and one former congressman.

The slope is cut into a series of undulating bluffs to accommodate the graves and curving roads around the cemetery.

Later that year it purchased 50 acres (200,000 m2) of farmland in Middletown, which had only recently incorporated as a village, for its cemetery.

[2] An English immigrant, Vaux had worked for Andrew Jackson Downing of Newburgh, whose ideas about a more naturally sympathetic architecture guided much home construction in mid-19th century America.

Two years earlier, Vaux and Olmsted, another Downing disciple, had won New York City's design competition to create Central Park.