John Benjamin Macneill
| John Benjamin Macneill | |
|---|---|
| Born | 1793 Dundalk, Ireland | 
| Died | 2 March 1880 (aged 86–87) | 
| Nationality | Irish | 
| Occupation | Civil engineer | 
Sir John Benjamin Macneill FRS (1793 – 2 March 1880) was an Irish civil engineer of the 19th century, closely associated with Thomas Telford. His most notable projects were railway schemes in Ireland.