Jacqueline "Jackie" Winsor (born October 20, 1941, in St. John's, Newfoundland) is a Canadian-American sculptor. Her style, which developed in the early 1970s as a reaction to the work of minimal artists, has been characterized as post-minimal, anti-form, and process art. Works from this period retain minimalism's geometry but eschew its use of industrial materials and methods in favor of materials such as wood and hemp.
Winsor has been in several exhibitions. In 1979, a mid-career retrospective of her work opened at the MoMA; this was the first time the MoMA had presented a retrospective of work by a woman artist since 1946. Other exhibitions include "American Woman Artist Show" April 14 – May 14, 1974 at the Kunsthaus Hamburg (Germany), curated by Sybille Niester and Lil Picard, and "26 Contemporary Women Artists" April 18 – June 13, 1971 at the Aldrich Museum of Contemporary Art, curated by Lucy Lippard