| Arnošt Kreuz | |
| Birth Date: | 9 May 1912 |
| Birth Place: | Neštěmice (Ústí nad Labem), Austria-Hungary |
| Death Place: | Harksheide (Norderstedt), West Germany |
| Position: | Forward |
| Youthclubs1: | DSK Brüx |
| Years1: | 1929-1933 |
| Clubs1: | Teplitzer FK |
| Years2: | 1933-1934 |
| Clubs2: | AC Sparta Prague |
| Years3: | 1935-1936 |
| Clubs3: | DFC Prague |
| Years4: | 1937-1941 |
| Clubs4: | SK Pardubice |
| Nationalyears1: | 1931–1938 |
| Nationalteam1: | Czechoslovakia |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
Arnošt Kreuz (or Ernst Kreuz, 9 May 1912 – 9 February 1974[1]), was a Czech football forward of German ethnicity who played for Czechoslovakia in the 1938 FIFA World Cup.[2]