John Benjamin Macneill

John Benjamin Macneill
Born1793 (1793)
Dundalk, Ireland
Died2 March 1880(1880-03-02) (aged 86–87)
NationalityIrish
OccupationCivil 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.