Sebastian of Heusenstamm | |
|---|---|
| Archbishop-Elector of Mainz | |
 | |
| Church | Roman Catholic |
| Archdiocese | Electorate of Mainz |
| In office | 1545–1555 |
| Predecessor | Albert of Mainz |
| Successor | Daniel Brendel von Homburg |
| Orders | |
| Ordination | 6 October 1531 |
| Consecration | 2 May 1546 by Melchior Zobel von Giebelstadt |
| Personal details | |
| Born | 16 March 1508 |
| Died | 18 March 1555 (aged 47) Eltville |
| Buried | Mainz Cathedral |
Sebastian of Heusenstamm (German: Sebastian von Heusenstamm) (16 March 1508 – 18 March 1555) was the Archbishop-Elector of Mainz from 1545 to 1555.