Ann Christensen was born on December 20, 1945 in New Brunswick, New Jersey. She attended Colby College in Waterville, Maine from 1963-1967. Since 1967 she worked as a graphic designer in the Boston area. She had graduate design training with Dietmar Winkler at Southeastern Massachusetts University from 1975-1976 and studied art with Albert Alcalay at Harvard University from 1978-1980. From 1987-1989 she resumed formal art training at the School of the Boston Museum of Fine Arts, studying painting principally with Gerry Bergstein and Miroslav Antic.

In 1992 Ms. Christensen won the National Faber Birren Color Award for expressive use of color; in 1997 she received the Faber Birren Founder's Award; and in 2001 she received the Faber Birren Revington Arthur Foundation Award. She has been represented by the MPG Gallery in Boston since 1998 and the Dragonfly Gallery in Martha's Vineyard since 1997.

A resident of Cambridge, Massachusetts since 1975, Ms. Christensen received a City of Cambridge Commendation in 1991. She currently travels extensively, paints full-time and teaches painting in her Boston-area studio.