Elsa Leviseur is an architect of Los Angeles, California, born in South Africa in 1932. She earned a B. Arch. at the University of Cape Town School of Architecture in 1954 and a M. A. in Architecture and Urban Planning from the University of California at Los Angeles Graduate School of Architecture and Urban Planning in 1980. She has been principal of Leviseur Architects in Santa Monica, California, since 1983. She was Principal of Architerra in Los Angeles from 1986 to 1989 and Project Manager of The Tanzmann Associates from 1980 to 1983. She worked in other architects offices and in private practice in England from 1960 to 1969 and in South Africa from 1954 to 1959.

Leviseur taught at Manchester Polytechnic in England in the early 1990s, and at the University of California, Los Angeles from 1984 to 1989. She has been a member of the Association for Women in Architecture since 1974 (she served as President in 1978), and was a founding member of Designers and Planners for Social Responsibility and member since 1984.