(b Tampere, 13 Aug 1900; d Helsinki, 13 Nov 1952). Finnish architect. He was an important exponent of functionalism in Finland. In 1937 he won the Grand Prix at the Exposition Internationale des Arts et Techniques dans la Vie Moderne, held in Paris. His best-known works include the Olympic Stadium (1940–52) in Helsinki, which he designed with Toivo Jäntti. From time to time he collaborated with Alvar Aalto. Lindegren designed many sports centres in Finland, including those at Pori, Riihimäki (1949–50) and Varkaus. The last, the Kanavasaari Sports Centre, won him the gold medal in the Art Competition of the Olympic Games in 1948. After World War II he designed a general plan for central Helsinki (with Erik Krakström), on which Alvar Aalto’s later plan is largely based. Other outstanding designs include the Vaalijala Central Institute for the Mentally Handicapped in Pieksämäki, which comprises c. 30 pavilion-like buildings linked by covered service corridors, thus avoiding the problems of one large, integrated institutional building. One of the last of Lindegren’s executed works is the Serpentine flats (1951), a living complex in Helsinki: all the dwellings are situated in a curving mass so that each has an unbroken view of the forest beyond and the gently rolling countryside. During his lifetime Lindegren had a considerable influence on his architectural colleagues, and he was chairman of the Finnish Architects’ Association several times.