| Gustav Wieser | |
| Birth Date: | 24 June 1898 |
| Position: | Striker |
| Years1: | 1914–1921 |
| Years2: | 1921–1923 |
| Years3: | 1923–1927 |
| Clubs1: | SK Rapid Wien |
| Clubs2: | Würzburger Kickers |
| Clubs3: | Amateure |
| Caps1: | 82 |
| Goals1: | 62 |
| Nationalyears1: | 1916–1926 |
| Nationalteam1: | Austria |
| Nationalcaps1: | 27 |
| Nationalgoals1: | 12 |
| Manageryears1: | 1927–1928 |
| Manageryears2: | 1928–1929 |
| Manageryears5: | 1933–1934 |
| Manageryears6: | 1934–1935 |
| Managerclubs1: | Eintracht Frankfurt |
| Managerclubs2: | FC Schalke 04 |
| Managerclubs3: | TuS Bremerhaven |
| Managerclubs4: | Jeunesse Esch |
| Managerclubs5: | Legia Warsaw |
| Managerclubs6: | Ruch Chorzów |
Gustav "Guggi" Wieser was an Austrian footballer[1] and coach.