Leonard John Lance is an American politician and attorney who served as the U.S. representative for New Jersey's 7th congressional district, from 2009 to 2019. He ran for re-election in 2018, but was defeated by Democrat Tom Malinowski. He is a member of the Republican Party who previously served in the New Jersey Senate from 2002 to 2009 and the New Jersey General Assembly from 1991 to 2002.

New Jersey's 7th congressional district includes all of Hunterdon and Warren Counties; and parts of Morris, Somerset, Sussex, and Union Counties. The district is represented by Republican Thomas Kean Jr., who was first elected in 2022, defeating Democratic incumbent Tom Malinowski.