Sucker Brook is a tributary of Lawrence Brook in central New Jersey in the United States.
The source of Sucker Brook is several pools located in a housing development at . It travels in a pipe under Route 130, and then runs between a housing development. It drains into Lawrence Brook at near Westons Mill Pond, a dammed section of Lawrence Brook.
An 1876 map of North Brunswick shows that Sucker Brook at one time transversed the present day U.S. 1, Milltown Road, 4th, 3rd, 2nd, 1st Avenues, and Allgair Avenue, and ended near Nassau Street east of George's Road.