| William Forbes | |
| Office: | Member of Parliament for Stirlingshire |
| Term Start: | 14 July 1841 |
| Predecessor: | George Abercromby |
| Successor: | Peter Blackburn |
| Term Start2: | 17 January 1835 |
| Term End2: | 30 April 1838 |
| Predecessor2: | Charles Elphinstone Fleeming |
| Successor2: | George Abercromby |
| Birth Date: | 1806 |
| Nationality: | British |
| Party: | Conservative |
William Forbes (1806 –)[1] was a British Conservative politician.
Forbes was elected Conservative MP for Stirlingshire at the 1835 general election. However, after winning the seat again at the 1837 general election, he was unseated on petition in favour of George Abercromby in 1838, after at least one vote had been wrongly ascribed to the wrong candidate.[2] He later regained the seat, at the 1841 general election, and held it until his death in 1855.[3]