Peter Rey Aguilar (/ˈæɡjəˌlɑːr/; born June 19, 1979) is an American politician serving as the United States representative from California's 31st congressional district. A member of the Democratic Party, Aguilar was elected House Democratic Caucus chair on November 30, 2022. He served as mayor of Redlands, California, from 2010 to 2014 and as the president of the Inland Empire Division of the League of California Cities. Aguilar served on the Redlands City Council from 2006 until his election to Congress.