Klaus-Dieter Sieloff, a German defender, had spells at VfB Stuttgart, Borussia Mönchengladbach and Alemannia Aachen. He was an international for Germany before his death in 2011.
| Surname | Sieloff |
| Name | Klaus-Dieter |
| Nationality | Germany |
| Birthplace | Sovetsk, Russia |
| Birth Date | 27 February 1942 |
| Death Date | 13 December 2011 (69 years old) |
| Position | Defender |
| Height | 1.78 m |
| Weight | 79 kg |
Backnang
Alemannia Aachen
Borussia Mönchengladbach
VfB Stuttgart
Germany National Team