Keilaniemi (Swedish: Kägeludden) is a district in the south-eastern part of Espoo, Finland. It is a high-rise business district mostly known for the numerous head offices of large corporations located there. The district includes the head offices of Microsoft Mobile, Kone, Fortum, Neste Oil, and many smaller corporations such as Rovio Entertainment. Keilaniemi rose to the position of a corporate concentration in 1976, when the Fortum head office was built there. The 18-story building is still one of the tallest office buildings in Finland.
Keilaniemi is bordered by the university district of Otaniemi to the north, the commercial/residential district of Tapiola to the west, the Keilalahti bay separating Espoo and Helsinki to the east, and the Gulf of Finland to the south. The distance from Keilaniemi to the centre of Helsinki along the Länsiväylä highway is about 8 km.
Länsimetro, an extension of the Helsinki metro, is under construction, includes a metro station in Keilaniemi. Significant new construction is also planned: construction of new tower blocks for office and residential use has been approved.
Immediately south of Keilaniemi proper, there is the small peninsula of Karhusaari, where a 19th-century mansion, the Sinebrychoff mansion, is located. The mansion, owned by the City of Espoo, houses the Karhusaari Art Centre and is used for weddings and other events.