William St Clair | |
|---|---|
| Baron of Roslin | |
 Baron of Roslin coat of arms | |
| Predecessor | William St Clair, 15th Baron of Roslin |
| Successor | John St Clair, 17th Baron of Roslin |
| Died | 1650 |
| Noble family | Clan Sinclair |
| Father | William St Clair |
| Mother | Jean or Janet Edmondstone |
William St Clair (died 1650) was a Scottish nobleman and the 16th Baron of Roslin.