Ivanoff (feminine: Ivanoffa) is a surname. People with the surname include: * Serge Ivanoff (1893–1983), Russian painter * Victor Ivanoff (1909–1990), Russian-born South African painter and cartoonist * Juan Carlos Bacileff Ivanoff (born 1949), Argentine politician * Nicolas Ivanoff (born 1969), French pilot and flying instructor * Alexandre Barbera-Ivanoff (born 1973), French painter * Jonathan Ivanoff (born 1989), Argentine footballer * Eugene Nicolaievich Ivanoff (), imposter to the Romanov family * Nick Ivanoff (), American transportation businessman

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