Ølstykke is a former municipality in Region Hovedstaden.

The former Ølstykke municipality covered an area of 29 km2, and had a total population of 15,358 (2005).

Its last mayor was Svend Kjærgaard, a member of the Venstre (Liberal Party) political party.

This created a municipality with an area of 126 km2 and a total population of 39,267 (2005).

This article about a location in the Capital Region of Denmark is a stub.