| William Alexander Mackinnon | |
| Birth Place: | Marylebone, London, England |
| Death Place: | Folkestone, Kent, England |
| Known For: | Member of Parliament |
| Nationality: | British |
William Alexander Mackinnon (1813 – 14 September 1903) was elected the Whig MP for Rye on 10 July 1852 but the result was declared void as a result of "treating". There was a question of £220 left behind a sofa cushion at the Red Lion to pay for a dinner.[1] At the resulting bye-election the seat was taken by his father. At the next election he was elected MP for Lymington which he held until 1868 but he never spoke in parliament.[2] He was the 34th Chief of the Clan Mackinnon.[3] He was educated at St John's College, Cambridge.
He married Miss Willes on 25 April 1846.[4] Mackinnon died aged 90 at his home Acrise Place near Folkestone, Kent.