Bagley Park, Urban park in Hillsboro, Oregon.

Bagley Park is a two-acre municipal park in downtown Hillsboro, Oregon, covering a half-block along Northeast Second Avenue between Jackson and Edison streets. It has a basketball court, a softball field, a picnic shelter, and play equipment including seesaws, slides, and a merry-go-round. The grounds are planted with cottonwood trees and three large redwood trees.

Judge George R. Bagley donated his land to the city for one dollar, leading to the establishment of Hillsboro's second municipal park in 1926. This gift marked an important step in the city's early development of public recreational spaces.

The park grounds served as the starting location for the Lil Spooks Parade, a Halloween costume contest that continued through the late 1990s.

Bagley Park occupies a half-block along Northeast Second Avenue between Jackson and Edison streets, two blocks north of the Washington County Courthouse and one block north of the Zula Linklater House. The restroom is ADA compliant, and sidewalks run through the grounds. Shade comes from cottonwoods and three large redwoods.

A major renovation in 2007 modernized the park facilities with substantial support from federal funding. This investment revitalized the space and significantly improved its recreational offerings for the community.