'Hatch End' is said to mean the gate of Pinner Park.
It was one of Pinner's tiny hamlets, and the name is first recorded in 1448. Pinner Park was a 250-acre haven for the deer of the lord of the manor of Harrow, guarded by a high bank and two ditches. The station opened as Pinner in 1842 or 1844 (sources differ), became Pinner and Hatch End in 1897 and Hatch End (for Pinner) in 1920.