Jan Butterfield was an American art writer, teacher and critic. She wrote extensively on twentieth century installation and craft artists, focused on those who worked in California and the American West.
Butterfield held positions at the Los Angeles County Museum of Art, The Modern Art Museum of Fort Worth, the Fort Worth Star Telegram, the Northwood Experimental Art Institute, the San Francisco Art Insitute, San Jose State University, and Mills College.
In 1984, Butterfield and artist Sam Francis co-founded the Lapis Press, a studio and publishing house which focused on the work of psychologist Carl Jung, as it related to art theory, and would later be known for its ultraspecialized, limited-edition works. She served as the executive director of Lapis Press from its founding until 1988.