Alexander Mitchell (engineer)
| Alexander Mitchell | |
|---|---|
| 1873 portrait of Mitchell, by Richard Hooke, with Dundalk Bay and lighthouse to rear | |
| Born | 13 April 1780 | 
| Died | 25 June 1868 (aged 88) Near Belfast, Ireland | 
| Education | Belfast Royal Academy | 
| Known for | Screw-pile lighthouse | 
| Notable work | |
| Awards | Telford Medal (1848) | 
| Engineering career | |
| Discipline | Civil engineering | 
| Significant design | Screw piles | 
Alexander Mitchell MICE (13 April 1780 – 25 June 1868) was an Irish engineer who from 1802 was blind. He is known as the inventor of the screw-pile lighthouse.