Erik Gunnar Asplund (°Stockholm, 22 September 1885 – †Stockholm, 20 October 1940) was a Swedish architect.
Asplund is mostly known as a key representative of Nordic Classicism of the 1920s, and during the last decade of his life as a major proponent of the modernist style which made its breakthrough in Sweden at the Stockholm International Exhibition (1930). Asplund was professor of architecture at the Royal Institute of Technology from 1931. His appointment was marked by a lecture, later published under the title “Our architectonic concept of space.”
Among Asplund’s most important works is the Stockholm Public Library, constructed between 1924 and 1928, which stands as the prototypical example of the Nordic Classicism and so-called Swedish Grace movement. It was particularly influential on the proposal submitted for the competition for the design of the Viipuri Library in 1927 by Finnish architect Alvar Aalto, who regarded Asplund as his mentor. Gunnar Asplund is considered perhaps the most important modernist Swedish architect and has had a major influence on later generations of Swedish and Nordic architects.