Heidi Kristina Blomstedt (née Sibelius; Järvenpää, 20 June 1911 – Helsinki, 3 January 1982) was a Finnish designer.

[1] She began her education in Helsinki, and later continued her studies at the Ateneum School of Art.

[2] She graduated in ceramics at the Taik School of Art and Design in 1932, and worked as a freelance ceramist and for the Arabia company.

She married the modernist architect and architectural theoretician Aulis Blomstedt, and they had four children: Juhana Blomstedt (1937–2010), Petri Blomstedt (1941–1997), Anssi Blomstedt (b.

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