| Medal record | ||
|---|---|---|
| Men's canoe sprint | ||
| World Championships | ||
| Silver | 1975 Belgrade | C-2 500 m |
| Bronze | 1970 Copenhagen | C-1 1000 m |
| Bronze | 1974 Mexico City | C-2 500 m |
Jiří Čtvrtečka (born December 2, 1942) is a Czechoslovak sprint canoer who competed from the late 1960s to the late 1970s. He won three medals at the ICF Canoe Sprint World Championships with a silver (C-2 500 m: 1975) and two bronzes (C-1 1000 m: 1970, C-2 500 m: 1974).
Čtvrtečka also competed in three Summer Olympics, earning his best finish of fourth in the C-1 1000 m event at Mexico City in 1968.