American painter who explored abstraction and metaphysics in her work.

Irene Rice moved a number of times with her family before they settled in Brooklyn, New York City. After exploring other careers, from 1927 to 1930 she studied at the Art Students League in New York. In 1929 she married commercial artist Humberto Pereira, the first of her three husbands. Two years later she traveled alone to France, Italy, and North Africa, probably studying with the painter Amédée Ozenfant (Ozenfant, Amédée) for a time in France.

Upon her return to New York in 1933, she had her first solo show at the American Contemporary Arts Gallery. Her work from this period was semiabstract and, reflecting the influence of Ozenfant, explored the theme of the machine. During the Great Depression, she helped found and then taught at the Federal Art Project Design Laboratory in New York, where she experimented with a variety of forms and materials. In 1937 she painted her first purely abstract works; she eventually became known for her abstract paintings made on superimposed layers of glass. Late in her career, Pereira began to explore metaphysical issues. Her interest in cosmology and physics resulted in books such as Light and the New Reality (1951) and The Paradox of Space and the Simultaneous Ever-Coming to Be (1955). In the 1940s and '50s, several major museums, including the Metropolitan Museum of Art in New York and the Art Institute of Chicago, acquired her work.