| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Karl Oswald•Růžička | |
| Used name | Karl•Růžička | |
| Born | 11 May 1909 in Mariánské Lázně, Karlovarský kraj |  CZE |
| Affiliations | HDW — ? | CZE |
| WSV Marienbad — Mariánské Lázně, Karlovarský kraj | CZE | |
| DSV Tiefenbach — Desná, Liberecký kraj | CZE | |
| NOC | Czechoslovakia |  TCH |
| Nationality | Czechia |
Karel Růžička was a Czechoslovak bobsledder. Růžička and Josef Lanzendörfer won the silver medal in the two-man bobsleigh at the 1935 FIBT World Championships. The following year Růžička and Lanzendörfer competed in the same event at the 1936 Garmisch-Partenkirchen Olympics. The pair finished in 20th place. Růžička was also part of the Czechoslovak team that competed in the four-man bobsleigh but the team did not complete their first of four runs.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | Nationality | As | |
|---|---|---|---|---|---|---|---|
| 1936 Winter Olympics | Bobsleigh (Bobsleigh) | TCH |
CZE |
Karl Růžička | |||
| Two, Men (Olympic) | Josef Lanzendörfer | 20 | |||||
| Four, Men (Olympic) | Czechoslovakia 1 |
