Maryhill Stonehenge, World War I memorial sculpture in Klickitat County, United States.

Maryhill Stonehenge is a concrete war memorial in Klickitat County, built to the measurements of the British original. The structure stands on a cliff above the Columbia River and consists of upright columns arranged in a circle.

Samuel Hill commissioned the concrete replica in the early 20th century and dedicated it on July 4, 1918, as the first monument in the United States honoring the dead of World War I, specifically soldiers from Klickitat County. Construction was completed in 1929, with a second formal dedication on May 30, 1929. Hill, a Quaker, intended it as a reminder that humanity is still sacrificed to the god of war. The site was listed on the National Register of Historic Places in 2021.

The memorial's dedication plaque honors soldiers and sailors of Klickitat County, and nearby monuments commemorate those who died in World War II, Korea, Vietnam and Afghanistan. Sam Hill, a Quaker, built the replica as a reminder that humanity can still be sacrificed to the god of war. The site is now part of the Maryhill Museum of Art.

The memorial stands off U.S. Highway 97, about two miles from the Sam Hill Memorial Bridge, within the Maryhill Museum of Art grounds. Admission is free, with donations accepted for upkeep. The concrete circle sits on open ground overlooking the Columbia Gorge, so expect wind and sun; nearby monuments honor Klickitat County dead from World War II, Korea, Vietnam and Afghanistan.

Sam Hill, a Quaker, built the replica believing Stonehenge had been a sacrificial site, as a reminder that humanity can still be sacrificed to the god of war. The altar stone is placed to align with sunrise on the summer solstice. The town of Maryhill later burned down, leaving only the concrete monument.