'Hounslow' probably means the barrow, or mound, of the hound.
In the Domesday Book of 1086 it is Honeslauu, from Old English words for hounds and hill. The station opened in 1884 as Hounslow Barracks, after the Cavalry Barracks to its south, built in 1793 as one of 40 new barracks set up after the French Revolution. It was renamed Hounslow West in 1925.