Old Seminary Building

The Old Seminary Building, also known as Old Masonic Lodge or Lawrencevile Female Seminary Building, is a building in Lawrenceville, Georgia, USA, that was built in 1855 in Greek Revival and Federal style. It was originally constructed as a school but has had various tenants through the years, most notably Lawrenceville Lodge No. 131 Free and Accepted Masons, who used the second story of the building for meetings for more than a century.

It is 36x51 ft in plan; its two floors have 12 ft ceilings.

Later, it housed the Gwinnett History Museum and was open by appointment with the Gwinnett Environmental & Heritage Center.

It was listed on the National Register of Historic Places in 1970.