Lyons is an unincorporated community and census-designated place (CDP)[5] located within Bernards Township, in Somerset County, in the U.S. state of New Jersey.

Lyons is 2.5 miles (4.0 km) south-southeast of Bernardsville.

Lyons has a post office with ZIP Code 07939.

The Lyons VA Medical Center is a U. S. Department of Veterans Affairs hospital located here.

[10] The community is served by New Jersey Transit train service at the Lyons station[11] on the Gladstone Branch to Newark Broad Street Station and Hoboken Terminal.