Allin Congregational Church is an historic United Church of Christ church in Dedham, Massachusetts. It was built in 1818 by conservative breakaway members of Dedham's First Church and Parish in the Greek Revival style.

The First Church and Parish in Dedham is a Unitarian Universalist congregation in Dedham, Massachusetts. It was the 14th church established in Massachusetts. The current minister, Rev. Rali M. Weaver, was called in March 2007, settled in July, and is the first female minister to this congregation.