Makawao Union Church, Gothic Revival church near Makawao, Maui County, United States

Makawao Union Church is a Gothic Revival church on Baldwin Avenue near Makawao, built of reinforced concrete faced with native basalt lava rock and roofed in Vermont slate. A Norman-style tower holds a Seth Thomas clock with three faces, and entry is through oak doors in the tower. Four stained glass windows and the bell came from the earlier frame church, and the building stands on the foundation of the former Paliuli Sugar Mill.

The congregation was founded by New England missionary Jonathan Smith Green during the Kingdom of Hawaii; the original building stood until about 1900. In 1888 Henry Perrine Baldwin offered a site on the foundation of the former Paliuli Sugar Mill, and a white New England-style frame church was dedicated there on March 10, 1889. That frame church was razed in 1916 and replaced by the present Gothic Revival stone building, designed by Charles William Dickey and dedicated September 2, 1917 as the Henry Perrine Baldwin Memorial Church. It was listed on the Hawaii Register of Historic Places on June 29, 1985 and on the National Register on December 17, 1985.

The church calls itself an interdenominational community church with Congregational heritage, and Rev. Robin Lunn was pastor as of 2019. The adjacent Pāʻia Community House, finished in hardwood inside in 1914, has a large auditorium and a 40-foot-deep stage that hosted plays, operettas, school graduations, concerts, lectures, silent movies and dances.

The church stands at 1445 Baldwin Avenue, the road named for the Baldwin family, on the stretch near Makawao. Its cemetery lies about 3.9 miles southeast, in the 3300 block of Baldwin Avenue, with the Maui Veteran's Cemetery beside it. The 1938 Maui earthquake damaged the adjacent Pāʻia Community House but left the stone church standing.

The church cemetery lies 3.9 miles southeast of the building, in the 3300 block of Baldwin Avenue, and holds missionary Jonathan Smith Green (died 1878), his wife Theodosia Arnold Green (1859) and Ansenath Cargill Green (1894), plus Harry Baldwin (1946) and pineapple planter James Dole (1958). The adjacent Maui Veteran's Cemetery has the graves of actors Evelyn Ankers (1985) and Richard Denning (1998).