Ferdinand Marie Ismaël de Lesseps (27 November 1871 – 30 September 1915), known as Ismaël de Lesseps, was a French fencer.

[1] He competed in the individual and team sabre events at the 1908 Summer Olympics.

[2] He was killed in action during World War I.

[3] He was the brother of Bertrand Marie de Lesseps and son of Ferdinand de Lesseps.

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