North Avenue Congregational Church (now known as John and Carol Moriarty Library, and previously as Old Cambridge Baptist Church and North Prospect Congregational Church and Prospect Hall) is a historic church meetinghouse at 1801 (previously at 1803) Massachusetts Avenue in Cambridge, Massachusetts. It was completely renovated in 2015 to become a library for Lesley University. The former church now forms part of what is now the Lunder Arts Center complex.