Marjorie Virginia Strider (January 26, 1931 – August 27, 2014) was an American painter, sculptor and performance artist best known for her three-dimensional paintings and site-specific soft sculpture installations.

Strider's three-dimensional paintings of beach girls with "built out" curves were prominently featured in the Pace Gallery's 1964 "International Girlie Show" alongside other "pin-up"-inspired pop art by Rosalyn Drexler, Roy Lichtenstein, Andy Warhol, and Tom Wesselmann.

[2] Her bold figural work from this era aimed to subvert sexist images of women in popular culture by turning objectified female bodies into menacing forms that literally got "in your face."

Strider had two subsequent solo exhibitions at the Pace Gallery in 1965 and 1966 where she continued to show her voluminous paintings of bikini-clad girls as well as 3-D renderings of vegetables, fruits, flowers, clouds and other natural phenomena.

She made site-specific installations of unbridled polyurethane foam that tumbled out of windows (Building Work 1976, PS1) or oozed down a spiral staircase (Blue Sky 1976, Clocktower Gallery).