Seeley is a census-designated place (CDP) in Cumberland County, in the U.S. state of New Jersey.

It is in the northern part of the county, on the west side of Upper Deerfield Township.

Seeley is 5 miles (8 km) north of Bridgeton, the county seat, and 13 miles (21 km) west of Vineland.

Seeley was first listed as a CDP prior to the 2020 census.

This Cumberland County, New Jersey state location article is a stub.