Born in Amsterdam, Sonja Landweer studied at the Amsterdam School of Industrial Design (now Rietveld Academy). She evolved a batiked-ceramic technique in the early 1960s, before moving to Ireland and working at the Kilkenny Design Workshops.
Her ceramics have been widely exhibited in Ireland and abroad. Her jewellery can regularly be seen at DesignYard, Dublin and the Pepper Cannister Gallery Dublin. She is represented in many private and public collections throughout the world.
Since living in Ireland, her solo exhibitions include David Hendriks Gallery, Dublin (1967-81); Kapelhuis, Amersfoort (1966-81); Galerie In-Art, Amsterdam (1972, 93); Taylor Galleries, Dublin (1989, 92); Museum of Decorative Arts, Copehagen (1972); Hildesheim Stadtisches Museum, West Germany (1973); Ulster Museum (1990); Rudolf Heltzl, Kilkenny (1990, 91); Gallery Brigitta Moser, Zurich (1992); Kilkenny Arts Week (1992, 93, 95); Galerie Tactus Kopenhafen (1997); Frans Hals Museum, Haarlem, Holland (1998); Grimmerhus, Denmark (1998); Pepper Canister Gallery, Dublin (2001) and Butler Gallery, Kilkenny (2003-04).
Group shows include New Ceramics, Ulster Museum, Belfast (1974); Kilkenny Design Workshop (1977); World Craft Council Exhibition, Goteborg (1979); Concorso Internationale della Ceramica D’Arte, Faenza (1986); Women in irish Art, Hugh Lane Municipal Gallery Configura, Art in Europe, Erfurt, Germany (1991); Made in Europe, Gallery Trits, Delft, Holland (1992); Pur Sang Galerie Trits, Delft (1994); Frennale Zagiele Croatia (1994-97); Galerie Louis Martin, Delft, Siol, Dublin (1995); Barbican Centre London (1996); Six Amsterdammers, Galerie Amphora Holland (2000); Irish Ceramics, Scotland – Ireland (2001) and she was an invited artist for RHA shows in 2002, 2004 and 2005.
She has won numerous awards, including the Verzetsprijs in Holland (1964), the Prix Artistique, Biennale Internationale de Ceramique d’Art, Villauris, France (1974) and the 1992 honorary award from NCAD. Honorary Mention, Critics Acclaim, World Triennal of Small Ceramics, Zagreb (1993).
Since 2001 she has been working in bronze. She lives in Co. Kilkenny.