Ronald Weiser

Ron Weiser
Chair of the Michigan Republican Party
In office February 6, 2021 – February 18, 2023
Preceded by	Laura Cox
Succeeded by	Kristina Karamo
In office February 11, 2017 – February 23, 2019
Preceded by	Ronna McDaniel
Succeeded by	Laura Cox
In office February 1, 2009 – January 29, 2011
Preceded by	Saul Anuzis
Succeeded by	Bobby Schostak
Member of the University of Michigan Board of Regents
Incumbent
Assumed office January 1, 2017
Preceded by	Laurence Deitch
United States Ambassador to Slovakia
In office December 5, 2001 – December 19, 2004
President	George W. Bush
Preceded by	Carl Spielvogel
Succeeded by	Skip Vallee
Personal details
Born	(1945-07-07) July 7, 1945 (age 79) South Bend, Indiana, U.S.
Political party	Republican
Spouse	Eileen Weiser (m. 1983-2021)
Children	3
Education	University of Michigan (BA)

Ronald N. Weiser (born July 7, 1945) is an American businessman and Republican Party donor and financier. Weiser founded a real estate company. He held fundraising roles for the presidential campaigns of George W. Bush and John McCain. He was chairman of the Michigan Republican Party from 2009–2011, 2017–2019, and 2021–2023. He was U.S. ambassador to Slovakia during Bush's first term (2001–2004), and was elected to the Board of Regents of the University of Michigan in 2016.