Julien Cosmao

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Julien Cosmao
Portrait of Julien Cosmao by Auguste Mayer
Native name	Julien Marie Cosmao-Kerjulien
Nickname(s)	« Va de bon cœur »
Born	27 November 1761 Châteaulin
Died	17 February 1825 Brest
Buried	St Martin Cemetery, Brest
Allegiance	Kingdom of France  Kingdom of the French  French First Republic  First French Empire
Service/branch	French Navy
Years of service	1776 – 1816
Rank	Counter admiral
Commands held	Le Tonnant, Le Pluton

Julien Marie Cosmao-Kerjulien (Châteaulin, Finistère, 27 November 1761 – Brest, 17 February 1825) was a French Navy officer, admiral, best remembered for his role in the Battle of Trafalgar.