|Full name||Ralf Sievers|
|Date of birth||30 October 1961|
|Place of birth||Lüneburg, Germany|
|Height||1.75 m (5 ft 9 in)|
|1990–1993||FC St. Pauli||71||(2)|
|* Senior club appearances and goals counted for the domestic league only|
Like his brother Jörg he began his career at Lower Saxon club SV Eddelstorf. From 1982 until 1991, Sievers played 232 matches in the Bundesliga for Eintracht Frankfurt and FC St.Pauli, scoring 10 goals. From 1991 until 1993 he appeared in 44 fixtures for St.Pauli (one goal) in the 2. Bundesliga. 1988 was his most successful season. With Frankfurt he won the 1987–88 on 28 May 1988 and was part of the German olympic team that won the bronze medal at the Summer Olympics in Seoul.
His nickname Colt Sievers derives from The Fall Guy character Colt Seavers.