Mark Messmer

Mark Brian Messmer^[1] (born September 21, 1962)^[2] is an American politician who has served as the U.S. representative for Indiana's 8th congressional district since 2025. He is a member of the Republican Party.

Preceded byLarry Bucshon

Preceded byRodric Bray

Succeeded byChris Garten

Preceded byLindel Hume

Quick facts Preceded by, Majority Leader of the Indiana Senate ...

Mark Messmer
Official portrait, 2024
Member of the U.S. House of Representatives from Indiana's 8th district
Incumbent
Assumed office January 3, 2025
Preceded by	Larry Bucshon
Majority Leader of the Indiana Senate
In office November 7, 2018 – August 17, 2022
Preceded by	Rodric Bray
Succeeded by	Chris Garten
Member of the Indiana Senate from the 48th district
In office November 5, 2014 – September 3, 2024
Preceded by	Lindel Hume
Succeeded by	Daryl Schmitt
Member of the Indiana House of Representatives from the 63rd district
In office November 5, 2008 – November 5, 2014
Preceded by	Dave Crooks
Succeeded by	Mike Braun
Personal details
Born	Mark Brian Messmer (1962-09-21) September 21, 1962 (age 63) Jasper, Indiana, U.S.
Party	Republican
Spouse	Kim Messmer
Children	4
Education	Purdue University (BS)
Website	House website Campaign website

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Previously, Messmer served in the Indiana House of Representatives from 2008 to 2014 and the Indiana Senate from 2014 to 2024, serving as majority leader of the chamber from 2018 to 2022. Before that, he previously served on the Holy Family School Board from 2001 to 2004, and as its president from 2003 to 2004.

Representing a safe Republican district,^{[original research?]} Messmer was first elected to Congress in 2024 after winning a crowded Republican primary with 38% of the vote. He is a member of the moderate Republican Governance Group.^[3]