A restaurant manager was shot dead in front of his workplace in Queens last night, law-enforcement sources said.

Nevill Brown, 56, was chatting with a gal pal while seated in a parked car about 10:30 p.m. when a gunman dressed all in black walked up to the pair, shot him several times in the back of the head and fled without saying a word, sources said.

Brown, who was pronounced dead at the scene, was a manager at the Cozy Corner Jamaican Restaurant on 243rd Street in Rosedale. His criminal record includes an arrest for selling marijuana in the ‘90s, records show.

The motive for the shooting remains unclear and no arrests have been made, sources said.