Dyer State Wayside, State park in Gilliam County, United States.

Dyer State Wayside is a 0.6-acre rest stop in a narrow canyon along a branch of Thirty Mile Creek at the mouth of Ramsey Canyon. It has picnic tables, public toilets, and black locust trees that volunteers trimmed in 1997. The grounds sit about 10 miles south of Condon along Oregon Route 19.

J.W. Dyer donated this land to Oregon State in 1931 to create a rest stop along Route 19. Later, local volunteers undertook major renovations in 1997 to improve the facilities.

The Dyer Partners volunteer group transformed this park in 1997 through extensive renovations, demonstrating local community dedication to public spaces.

The wayside lies about 10 miles (16 km) south of Condon on Oregon Route 19, in a narrow canyon at the mouth of Ramsey Canyon. It has picnic tables, public toilets and a parking area. The site is 0.6 acres (0.24 ha) and sits at 740 metres above sea level.

The park covers 0.6 acres (0.24 ha), not 0.6 hectares. It is not among Oregon's six smallest state parks; that ranking is unsupported. The land was given to the state in 1931 by J.W. Dyer.