| Hermann Gretener | |
| Birth Date: | 8 September 1943 |
| Birth Place: | Bertschikon bei Attikon, Switzerland |
| Currentteam: | Retired |
| Role: | Rider |
| Proyears1: | 1964–1965 |
| Proteam1: | Gritzner–Veith |
| Proyears2: | 1966 |
| Proteam2: | Savro |
| Proyears3: | 1967–1969 |
| Proteam3: | Zimba–Automatic |
| Proyears4: | 1970 |
| Proyears5: | 1971–1972 |
| Proteam5: | Bio Strath–Mondia |
| Proyears6: | 1973–1975 |
| Proyears7: | 1976 |
| Proteam7: | Gartenbau–Brandli |
| Proyears8: | 1978 |
| Proteam8: | Zodiac-Gios |
Hermann Gretener (8 September 1942 – 27 March 2022) was a Swiss professional cyclo-cross cyclist.[1] He notably won the Swiss National Cyclo-cross Championships six times: in 1966, 1969, 1971, 1972, 1973 and 1975 in addition to four more podium finishes. He also won a silver medal at the UCI World Championships in 1966 and 1968 and a bronze medal in 1967 and 1972.[2]