Guivante Saint de Gast
French officer during World War II, deported to Mauthausen concentration camp (1906-1952)
- Occupation: civil servant
- Participant in: Pohl Trial (date: 1945-05-13; role: affiant)
- Military rank: lieutenant colonel
- Military branch: French Armed Forces
- Place of detention: Compiègne-Royallieu concentration camp (until: 1944-03-05); Fresnes Prison; Mauthausen concentration camp (period: 1944-03-18 through 1945-04-22); Neue Bremm (since: 1944-03-06)
- Residence: Lyon; Paris