The Pyynikki observation tower is a 26 meter observation tower in Tampere, Finland. It was completed in 1929 by the design of the city architect Vilho Kolho, and built using local red granite. The tower stands 75 meters above the level of the adjacent lake Pyhäjärvi (152 meters above the sea level) on the Pyynikki ridge crest.

The top can be reached by a lift, but walking up the stairs offers various observation windows. The open top offers a clear view of the city of Tampere as well as lake Näsijärvi on the north and lake Pyhäjärvi in the south. Entrance to the park and cafe is free but climbing the tower costs 50 cents for children or 2 euros for adults. The Cafe has its own historic donut recipe which has remained unchanged for 80 years.