Robert P. "Bob" Dettmer (born March 1, 1951) is a Minnesota politician and member of the Minnesota House of Representatives. A member of the Republican Party of Minnesota, he represents District 39A, located in the northeastern part of the Twin Cities metro area, which includes Chisago and Washington counties.^[1]

Dettmer attended Bemidji State University and graduated with a Bachelor of Science degree in Health and Physical Education in 1973. He also holds of Masters Of Education degree from St. Thomas University. He subsequently became a teacher in Forest Lake at Forest Lake High School, where he taught physical education and coached wrestling until 2007.

Dettmer served in the United States Army Reserve retiring as a Chief Warrant Officer 4 (CW4) in the Military Intelligence branch. In November 2001, he began a two-year tour on active duty supporting Operation Enduring Freedom at Fort Gordon, Georgia, and later Operation Iraqi Freedom.^[2] Two of his sons also serve as officers in the U.S. Army.

Dettmer was elected in 2006 to the open seat vacated by Representative Ray Vandeveer, who ran for higher office that year. He was re-elected in 2008, 2010, 2012, 2014, 2016, and 2018. He focuses on the issues of education, health care reform, economic growth, transportation, veterans and military affairs, and public safety.^[3]

• 2006 Minnesota House of Representatives elections
• 2008 Minnesota House of Representatives elections
• 2010 Minnesota House of Representatives elections
• 2012 Minnesota House of Representatives elections
• 2014 Minnesota House of Representatives elections