|28th Governor of South Dakota|
January 6, 1987 – April 19, 1993
|Lieutenant||Walter Dale Miller|
|Preceded by||Bill Janklow|
|Succeeded by||Walter Dale Miller|
George Speaker Mickelson
January 31, 1941
Mobridge, South Dakota, U.S.
|Died||April 19, 1993 (aged 52)|
Otter Creek Township, Jackson County, Iowa, U.S.
|Relatives||George Theodore Mickelson (father)|
Mark Mickelson (son)
|Education||University of South Dakota (BA, JD)|
|Branch/service||United States Army|
George Speaker Mickelson (January 31, 1941 – April 19, 1993) was an American politician, Vietnam War veteran, and the 28th Governor of South Dakota until his death in a plane crash near Zwingle, Iowa.
His father, George T. Mickelson, was also governor of South Dakota, from 1947 to 1951. To date, the Mickelsons are the only father-son duo to have held that office. He is a member of the prominent Mickelson family of South Dakota.
Mickelson was born in Mobridge, South Dakota. His grandfather was a Norwegian immigrant. His parents, George Theodore Mickelson and Madge Mickelson, were the Governor and First Lady of South Dakota from 1947 to 1951.
Mickelson graduated from the University of South Dakota with a bachelor's in business administration in 1963 and from the University of South Dakota School of Law in 1965. He was a brother in Lambda Chi Alpha fraternity at USD. He served in the United States Army, including a tour of duty in Vietnam. He married Linda McCahren and they had three children, Amy, David and Mark.
Mickelson served as South Dakota State Assistant Attorney General (1967–68) and South Dakota State Attorney, Brookings County (1971–74). First elected to the South Dakota House of Representatives in 1974, he held office there for six years, serving as Speaker for the final two years. Mickelson was elected governor in 1986 and reelected four years later. 
On April 19, 1993, Mickelson was one of eight people aboard a state-owned airplane returning to South Dakota from a lobbying effort in Ohio. The plane, a Mitsubishi MU-2 turboprop, reported engine trouble while flying near Dubuque, Iowa, and crashed into a farm silo about four miles south of Zwingle. Everyone on the plane was killed. Mickelson was succeeded as governor by then-Lieutenant Governor Walter Dale Miller. The crash happened on the same day as the end of the Branch Davidian siege near Waco, Texas, which overshadowed it in national news coverage.
George S. Mickelson Middle School in Brookings is named after him, as is the George S. Mickelson Trail in the Black Hills and the George S. Mickelson Center for the Neurosciences in Yankton, South Dakota. The George S. Mickelson Education Center at Southeast Technical Institute in Sioux Falls, South Dakota, was built in 1990. The George S. Mickelson Great Service Award is given out annually by the South Dakota Office of Tourism. His alma mater, the University of South Dakota , awards academically talented South Dakota students with high ACTs/SATs a full-tuition scholarship known as the George S. Mickelson Scholarship. It is the university's most prestigious scholarship.
Lowell C. Hansen II
| Speaker of the South Dakota House of Representatives
| Governor of South Dakota|
|Party political offices|
| Republican nominee for Governor of South Dakota
Categories: 1941 births | 1993 deaths | American people of Norwegian descent | Governors of South Dakota | Speakers of the South Dakota House of Representatives | Members of the South Dakota House of Representatives | 1992 United States presidential electors | District attorneys in South Dakota | South Dakota lawyers | South Dakota Republicans | University of South Dakota alumni | University of South Dakota School of Law alumni | United States Army soldiers | American army personnel of the Vietnam War | Victims of aviation accidents or incidents in the United States | American Methodists | Accidental deaths in Iowa | People who died in office | People from Mobridge, South Dakota | Republican Party state governors of the United States | 20th-century American lawyers | 20th-century American politicians