Westerpark is a former borough (stadsdeel) just northwest of the centre of the city of Amsterdam, Netherlands. As a borough it existed from 1990 till 2010, when it merged with the boroughs Oud-West, Bos en Lommer and De Baarsjes to form the new borough Amsterdam-West.

Westerpark comprised the following neighborhoods and areas:

• Frederik Hendrikbuurt
• Houthaven (former harbour area)
• Spaarndammerbuurt
• Staatsliedenbuurt
• Waterwijk
• Zeeheldenbuurt
• Westerpark (neighborhood) proper including the Westerpark (park)