Unitarian Universalist Church of Arlington (UUCA), historically known as the Unitarian Church of Arlington, is a Unitarian Universalist church located at 4444 Arlington Boulevard (U.S. 50) in Arlington County, Virginia. Founded in 1948, UUCA was the first Unitarian church in Washington, D.C.'s suburbs. Throughout its history, UUCA has taken part in progressive causes from the Civil Rights Movement to the legalization of same-sex marriage in Virginia. During the Civil Rights Movement, UUCA was the only Virginia church to speak out in favor of racial integration. UUCA's sanctuary building, designed by local architect Charles M. Goodman in 1964, is a concrete Brutalist structure that was listed on the National Register of Historic Places and Virginia Landmarks Register in 2014. It is one of o