Olmstead Place State Park, Pioneer farm state park in Kittitas County, United States.

Olmstead Place State Park preserves about 217 acres of farmland with original buildings, period equipment, and a creek flowing across the property. The site shows how agriculture operated in this region over a century ago.

The farm was listed on the National Register of Historic Places in 1971, the same year it became a state park. The property preserves a working pioneer farm in Kittitas County.

The park is a working pioneer farm run as a living museum, so visitors see the farm in use rather than only behind glass. The Olmstead family's original buildings and period equipment remain on the 217-acre site, and the grounds are also used for picnicking, hiking, fishing and wildlife viewing.

The grounds are open from early morning until dusk and offer hiking trails, fishing spots, and guided tours of the historic buildings. The best time to visit is during months with longer daylight hours when all areas are fully accessible.

The park maintains a heritage garden with plant varieties from the pioneer era to show what produce grew here in the past. The creek also supports wild fish populations that become especially active during certain seasons.