| Willibald Hahn | |
| Birth Date: | 31 January 1910 |
| Birth Place: | Vienna, Austria-Hungary |
| Position: | Midfielder |
| Years1: | 1931–1932 |
| Clubs1: | Florisdorfer AC |
| Years2: | 1932–1933 |
| Clubs2: | Austria Wien |
| Years3: | 1933–1934 |
| Clubs3: | SC de la Bastiedienne Bordeaux |
| Years4: | 1934–1935 |
| Clubs4: | Favoritner Sportclub |
| Years5: | 1935–1937 |
| Clubs5: | Favoritner AC |
| Years6: | 1937–1938 |
| Clubs6: | Admira Wien |
| Manageryears1: | 1938 |
| Managerclubs1: | Moss FK |
| Manageryears2: | 1952–1955 |
| Managerclubs2: | Norway |
| Manageryears3: | 1955 |
| Managerclubs3: | Vålerenga |
| Manageryears4: | 1956–1958 |
| Managerclubs4: | Bayern Munich |
| Manageryears5: | 1958–1959 |
| Managerclubs5: | Switzerland |
| Manageryears6: | 1960–1962 |
| Managerclubs6: | KSV Hessen Kassel |
| Manageryears7: | 1963–1964 |
| Managerclubs7: | Schwarz-Weiß Essen |
| Manageryears8: | 1964–1966 |
| Managerclubs8: | Rot-Weiß Oberhausen |
| Manageryears9: | 1968 |
| Managerclubs9: | ESV Ingolstadt |
| Manageryears10: | 1969–1971 |
| Managerclubs10: | SpVgg Bayreuth |
| Manageryears11: | 1971–1972 |
| Managerclubs11: | SSV Reutlingen |
| Manageryears12: | 1972–1973 |
| Managerclubs12: | Stuttgarter Kickers |
Willibald Hahn (31 January 1910 – 31 May 1999) was an Austrian footballer and football manager.
Hahn played for Florisdorfer AC, Austria Wien, SC de la Bastiedienne Bordeaux, Favoritner Sportclub, Favoritner AC and Admira Wien.
He began his coaching career with Moss FK in Norway and went on to coach the national team. He then coached, Bayern Munich, Switzerland, KSV Hessen Kassel, Schwarz-Weiß Essen, Rot-Weiß Oberhausen, ESV Ingolstadt, SpVgg Bayreuth, SSV Reutlingen and Stuttgarter Kickers.
He won the German Cup of 1957 with Bayern Munich.