Lasipalatsi is a functionalist office building designed in the 1930s, located on Mannerheimintie in the Kamppi district of Helsinki, Finland. Lasipalatsi is one of Helsinki's most notable functionalist buildings. An earlier building at the same location was the Turku barracks, which was destroyed in the Finnish Civil War in 1918. Lasipalatsi, designed by three young architects Viljo Revell, Heimo Riihimäki and Niilo Kokko, was built on the same site in 1936.
Lasipalatsi, containing offices, restaurants and a film theatre, was originally designed as a temporary building, later to be torn down to allow a larger office building to be constructed in its place. The Varuboden grocery, Oy Siemens AB and the HOK ice cream bar were Lasipalatsi's most prominent businesses for decades. At the time of its opening, the film theatre Bio Rex was one of the biggest film theatres in the city, and many formal premieres of Finnish films were shown there.
After decades of deterioration, Lasipalatsi was protected and renovated into a culture and media centre in 1998, also containing cafés and many corporations in the media business. The building also hosts Internet services and exhibition halls. The Yleisradio Morning TV used to be broadcast from Lasipalatsi, and next to it is the Yle Shop. The film theatre Bio Rex is specialised in showing non-mainstream cultural films.