Detlef Kübeck (born 22 February 1956 in Schwerin, Bezirk Schwerin) is a retired East German sprinter who specialized in the 200 metres.
At the 1982 European Championships he won a silver medal in the 4 x 100 metres relay with teammates Thomas Munkelt, Olaf Prenzler and Frank Emmelmann.
He also competed in the 200 metres, but did not reach the final.