Amadeus VIII, Duke of Savoy
| Antipope Felix V | |
|---|---|
| Portrait of antipope Felix V in the Nuremberg Chronicle (1493) | |
| Count of Savoy | |
| Reign | 1391–1416 | 
| Predecessor | Amadeus VII | 
| Successor | Title abolished | 
| Regent | Bonne of Bourbon (1391–1397) | 
| Duke of Savoy | |
| Reign | 1416–1440 | 
| Predecessor | Title established | 
| Successor | Louis I | 
| Regent | Louis I (c. 1434 – 5 February 1440) | 
| Spouse | |
| Issue (among others) | |
| House | Savoy | 
| Father | Amadeus VII, Count of Savoy | 
| Mother | Bonne of Berry | 
| Church | Catholic Church | 
| Papacy began | 24 July 1440 | 
| Papacy ended | 7 April 1449 | 
| Predecessor | Eugene IV Roman claimant: | 
| Opposed to | Pope Eugene IV Pope Nicholas V | 
| Orders | |
| Consecration | 24 July 1440 | 
| Personal details | |
| Born | 4 September 1383 | 
| Died | 7 January 1451 (aged 67) Geneva | 
| Coat of arms | |
Amadeus VIII (4 September 1383 – 7 January 1451), nicknamed the Peaceful, was Count of Savoy from 1391 to 1416 and Duke of Savoy from 1416 to 1440. He was a claimant to the papacy from 1439 to 1449 as Felix V in opposition to Popes Eugene IV and Nicholas V.