The Plummer Memorial Library is a historic library at 375 Auburn Street in Newton, Massachusetts. Once operated as a branch of the Newton Free Library, the city's public library system, it was closed in 2009 due to financial cuts. It is now operated as a community library by a local non-profit organization.
The building is a -story Tudor style brick building, built in 1927 with funding by subscription from Newton residents. The building was listed on the National Register of Historic Places in 1990.