Mark Messmer

Mark Messmer
Official portrait, 2024
Member of the U.S. House of Representatives
from Indiana's 8th district
Assumed office
January 3, 2025
Preceded byLarry Bucshon
Majority Leader of the Indiana Senate
In office
November 7, 2018  August 17, 2022
Preceded byRodric Bray
Succeeded byChris Garten
Member of the Indiana Senate
from the 48th district
In office
November 5, 2014  September 3, 2024
Preceded byLindel Hume
Succeeded byDaryl Schmitt
Member of the Indiana House of Representatives
from the 63rd district
In office
November 5, 2008  November 5, 2014
Preceded byDave Crooks
Succeeded byMike Braun
Personal details
Born
Mark Alan Messmer

(1967-12-16) December 16, 1967
Jasper, Indiana, U.S.
Political partyRepublican
SpouseKim Messmer
Children4
EducationPurdue University (BS)
WebsiteHouse website

Mark Alan Messmer (born December 16, 1967) is an American politician who has served as the U.S. representative for Indiana's 8th congressional district since 2025. A member of the Republican Party, he previously represented the 48th district in the Indiana Senate from 2014 to 2024, including as majority leader of the chamber from 2018 to 2022. Messmer is a former member of the Indiana House of Representatives, representing three terms for the 63rd district from November 5, 2008, to November 4, 2014. He previously served on the Holy Family School Board from 2001 to 2004. He served as its president from 2003 to 2004.