The Plainfield Masonic Temple is located at 105 East 7th Street in the city of Plainfield in Union County, New Jersey, United States.

26 Free & Accepted Masons, the historic Neoclassical Revival style masonic temple was added to the National Register of Historic Places on September 16, 2024, for its significance in architecture.

The four-story building was constructed by the Wigton–Abbott Corporation and completed in February 1929.

The entrance has a granite surround with rosettes and two bronze sconces.

On the western side, the building has the Square and Compasses symbol of Freemasonry adorned with a festoon.