Andrew Peter Harris is an American politician and physician serving as the U.S. representative for Maryland's 1st congressional district since 2011. The district includes the entire Eastern Shore, as well as several eastern exurbs of Baltimore. He is the only Republican member of Maryland's congressional delegation. Harris previously served in the Maryland Senate.

Maryland's 1st congressional district encompasses the entire Eastern Shore of Maryland, including Salisbury, as well as Harford County and parts of Baltimore County; it is the largest congressional district in the state geographically, covering 11 counties.