The Lyman Block is a historic commercial building at 83-91 Main Street in Brockton, Massachusetts.

It has granite corner quoining, and brownstone window lintels with keystones and shoulders.

The ground floor has modernized storefronts, and the entrance to the upper levels is now located on the Legion Parkway facade.

They were owners of Howard Clark & Co., a local manufacturer of furniture and funerary caskets, which was one of the building's early ground-floor tenants.

The upper floors were originally populated with professional offices, but there was a transition in the 20th century to light manufacturing operations.