Sonja Blomdahl (born 1952 in Waltham, Massachusetts) is an American blown glass artist.
[1] In 1976 she spent six months studying at the Orrefors glassworks in Sweden, and her work is sometimes associated with Scandinavian design.
[2][4] Venetian glass master Checco Ongaro taught Blomdahl the method of double-bubble blowing (or incalmo), for which her work is well known.
[4][5] In 1978, Blomdahl served as a teaching assistant at the Pilchuck Glass School (Stanwood, Washington) for Dan Dailey, where she first watched Checco Ongaro demonstrate the incalmo technique.
[4] Since the late 2000s, she has moved beyond the symmetrical glass vessels she is known for and worked increasingly with architectural forms.