Märta Blomstedt (1899–1982) was an architect and one of the driving forces of the Finnish functionalism movement.
Partnering with her husband, Pauli E.
Blomstedt, her first works were noted for their functional, rather than decorative appearance and settings in park-like environments.
After her husband's death, initially she formed a firm with Matti Lampén to complete projects her husband and she had begun.
Later, she and Lampén formed a firm designing their own creations.
She designed all aspects of her buildings including the furnishings, demonstrated in one of Blomstedt & Lampén's most noted designs of the Hotel Aulanko.
During the war, Blomstedt & Lampén mostly worked on renovation and restoration projects of existing buildings, but at the war's end, they returned to their own designs.
In addition to buildings, they were responsible for the city plans for Kuusjärvi and the Oravikoski Mining Community and created both public and private buildings in each city as well.
When Lampén died, Blomstedt formed a partnership with Olli Penttilä and continued to work into the 1970s.