The Sinebrychoff Park (Finnish: Sinebrychoffin puisto, Swedish: Sinebrychoffsparken), colloquially referred to as the "Koff Park", is a park in Punavuori, Helsinki, Finland, near Hietalahti. The park was named after the Sinebrychoff brewery, which had its premises next to the park from 1819 to 1992 and to whose lands the park used to belong, and the Sinebrychoff family that owned both. In addition to the Old Church Park and Kaivopuisto, the park is among the most popular parks in Helsinki.
At the edge of the park, along Bulevardi, is the former Sinebrychoff residence built in the 1840s, which currently houses the Sinebrychoff Art Museum. There is a gate from Bulevardi to the park on both sides of it. On the cliff south of the park there is an old octagonal brick tower. There is also a stairway to the cliff from the end of Iso Roobertinkatu. The Mallaskatu street runs underneath the park in a tunnel, which along with the Uudenmaankatu street starting from there forms a high-traffic driveway from Länsiväylä to central Helsinki.