Unitarian Meetinghouse is a historic meetinghouse building at the junction of CT Route 169 and CT Route 6 in Brooklyn, Connecticut. The church building was constructed in 1771 and added to the National Register of Historic Places in 1972. The building is owned and maintained by the Unitarian Universalist Society in Brooklyn, CT. The UUSB are the direct successors of the first Unitarian congregation in Connecticut. Its first Unitarian minister, Rev. Samuel May, was a noted peace activist, education reformer, temperance crusader, supporter of women's rights, and one of the principal supporters of Prudence Crandall, the official female hero of the state of Connecticut. In 1871 the UUSB ordained the Rev. Celia Burleigh, the first female Unitarian minister and one of the very first regularly ordained female ministers in any denomination.