Gail Singer, painter and printmaker, was born in Galveston, Texas on November 8, 1924. She was a graduate of the Mirabeau B. Lamar High School in Houston and, from 1946 to 1950, she studied fine arts at Washington University in Saint Louis. Singer was awarded the John T. Miliken Fellowship that allowed her to travel and study in Europe in 1952. She settled in Paris in 1955, working at Atelier 17 under Paul Buelin and Stanley William Hayter until the late 1960s. She remained in Paris for the rest of her life.

Singer worked in the intaglio process creatively combining the techniques of etching, aquatint, open bite, and viscosity. She also worked in relief, printing the surface of her matrix be it a metal plate, wood, or linoleum.

She participated in group exhibitions at the St. Louis Art Museum, the Cincinnati Art Museum, the Ljubljana Biennale of Graphic Arts, and in Paris at the Salon des Réalistés Nouvelles. Her work was also included in the 1962 Atelier 17 exhibition  that was mounted in London at the Institute of Contemporary Arts. The poster for the exhibition was a collaborative effort of Singer, Hayter, and Dadi Wirz. Singer also had solo exhibitions in Paris at the Galerie Le Soleil and, in 1975, at the Galerie Rive Gauche.

Her work is represented in the collections of the Kemper Art Museum, Saint Louis; the Washington University Collections in Saint Louis; British Museum, London; Stedelijk Museum, Amsterdam; Silkeborg Museum, Denmark; and the Bibliothèque nationale de France, Paris.

According to Carla Esposito Hayter, Gail Singer died in Paris in 1985.