Barbara Castleton (September 14, 1894 – December 23, 1978) was an American silent film actress. Castleton appeared in motion pictures from 1914 through 1923, accumulating 28 screen credits.
Her first husband was George W. Zimmerman, an attorney from Vancouver, British Columbia. Castleton won a divorce suit from Zimmerman in October 1921 in Reno, Nevada. She contended that he gambled and lived beyond his income. The decree was granted on grounds of cruelty.
Castleton was a collector of furniture. In March 1923, she purchased a pair of early 17th century blue velvet armchairs with Van Dyke fringe and a 17th century octagonal walnut center table with an elaborately carved base. The pieces were purchased at the Dabissi sale of fine old furniture held at the American Art Galleries in New York City.