Harmelen is a town in the Dutch province of Utrecht.

The built-up area of the town was 1.11 km², and contained 2481 residences.

[1] Harmelen is on the railway line between Utrecht and Woerden; its train station was opened on 21 May 1855 and closed on 15 May 1936.

The Harmelen train disaster, resulting in 93 fatalities, was the largest train accident in Dutch history.

The village used to be a separate municipality, until it merged with Woerden in 2001.