
Johnny Olszewski (born 10 September 1982) was the Democratic Executive of Baltimore County from 3 December 2018 to 3 January 2025 (succeeding Donald Mohler and preceding D'Andrea Walker) and a member of the US House of Representatives (D-MD 2) from 3 January 2025 (succeeding Dutch Ruppersberger). The son of city councillor John Olszewski, he served as the student member of the Baltimore County Board of Education from 1999 to 2000 before becoming a teacher, serving in the House of Delegates from 2006 to 2015, and serving as executive of Baltimore County and in Congress.