"Tex" Sieben, Jr. (born November 24, 1943) is a retired American politician and general who served in senior positions in the Legislature and National Guard of the state of Minnesota.

Sieben's grandfather and great-grandfather served as mayor of Hastings,[4] while his uncle, James Sieben, served in the military during World War II and the Korean War, and retired as a lieutenant general and Adjutant General of the Minnesota National Guard, a position held in 1975-1988.

Sieben entered the University of Minnesota Law School, and in 1968, earned his Juris Doctor.

In 1997, he was promoted to Assistant Adjutant General in the Minnesota Air National Guard based in St. Paul.

In this position, Sieben was responsible for liaison with senior leadership at higher headquarters, coordination with state and federal agencies, direction of long range planning, coordination of real estate matters, and implementation of plans and programs.

In October 1998, Sieben was promoted to brigadier general at National Guard state headquarters in St. Paul.

After joining SiebenCarey in 1969, he served as managing partner from 1983-2007, helping build one of Minnesota's largest personal injury law firms.