Harold Gilman (* 11. February 1876; 12. February 1919) was an English post-impressionist painter.
With Walter Sickert he became a founding member of the Fitzroy Street Group (London) in 1907. In 1911 he founded the Camden Town Group (London) with Sickert. Both groups did not embody the main line of English painting at the time, but rather dealt with motifs such as portraits or landscapes. Gilman was influenced by van Gogh, Cézanne, Gauguin and later by Matisse. His realistic painting, which was mainly limited to basic and complementary colours, was at times characterized by short, contrasting brush strokes.
Gilman died in 1919 of the Spanish flu that was rampant in Europe.