Sigmaringen is a district (Kreis) in the south of Baden-Württemberg, Germany. Neighboring districts are (from north clockwise) Reutlingen, Biberach, Ravensburg, Bodensee, Constance and Zollernalbkreis.

The area of the district was owned by several different states historically. Before 1800 it was split between many minor rulers, then it became the border area between the Baden and Württemberg, and embedded in between was the duchy Sigmaringen.

The duchy Sigmaringen became part of Kingdom of Prussia in 1849, at that time it had the Oberamt Sigmaringen and the Oberamt Gammertingen. Both were merged into the Landkreis Sigmaringen in 1925. In 1973 the district was enlarged by adding municipalities from the neighboring districts Saulgau, Stockach, Überlingen and Reutlingen. A roughly equal portion of the districts area came from all the three historic states.

The district is located in the mountains of the Swabian Alb.

Coordinates: 48°05′N 9°10′E / 48.08°N 9.17°E / 48.08; 9.17

Nicholas ("Nick") Henry Rose (born 30 December 1951) is a former British international track and field athlete. He competed in a variety of middle distance and long distance track events. He is the current European record holder in the 10 kilometre road race, and British record holder in the 4×1 mile relay event. He set the world record in the half-marathon in 1979. His personal best in the half-marathon is 1:01:03, the second fastest British time after Steve Jones. He also held the British record in the 2 miles event with 8:18.4—a record which stood for 24 years exactly.

Rose's first major victory came in the NCAA Men's Cross Country Championship in 1974, competing for Western Kentucky University. He successfully made the progression to professional athletics, running the fastest indoor 3000 metres time of any athlete in 1978. He was the national champion in the 10,000 metres in 1980.

He ran in the IAAF World Cross Country Championships twice. He made his first appearance in 1979 where he finished 21st and was a member of the winning English team. He returned the following year and this time took the bronze in the individual event and led the English team to an overall victory.