Susan Ivanova is a lead fictional character in the science fiction television series Babylon 5, played by Claudia Christian.

Babylon 5 is an American space opera television series created by writer and producer J. Michael Straczynski, under the Babylonian Productions label, in association with Straczynski's Synthetic Worlds Ltd. and Warner Bros. Domestic Television. After the successful airing of a test pilot movie on February 22, 1993, Babylon 5: The Gathering, Warner Bros. commissioned the series for production in May 1993 as part of its Prime Time Entertainment Network (PTEN). The show premiered in the US on January 26, 1994, and ran for five 22-episode seasons.