Lancaster Mennonite Conference (LMC) is a historic body of Mennonite churches in the Mid-Atlantic region of the United States, consisting of Pennsylvania, New Jersey, New York, and Maryland. There are also a few conference churches in Delaware, Virginia, and the city of Washington, D.C., as well as two located in Hawaii. The conference was briefly (2002-2015) associated with the newly formed Mennonite Church USA (MC USA).