Kate Helsy (1911-?) was a painter and art teacher active in New York City, New York.
Helsy was born in Hungary and studied at the Jaschick School and exhibited with the New Realist Artists Group. She settled in the United States in 1941 after spending some time in Cuba and exhibited her work at Roko Gallery. In addition to her painting career, Helsy taught children's art classes at the Mount Vernon Y.M.H.A. and the Brooklyn Museum.