Sébastien-François Bigot, vicomte de Morogues, (French pronunciation: [sebastjɛ̃ fʁɑ̃swa biɡo vikɔ̃t də mɔʁɔɡ]; 1 March 1706 in Brest, France – 26 August 1781 in Villefallier, near Orléans, Loiret), was a French soldier, a sailor and military naval tactician.

Sébastien-François Bigot was born on 1 March 1706 in Brest, France.

In 1759, he commanded the 70 gun Le Magnifique, including at the Battle of Quiberon Bay.

[1] In 1763, he published Tactique navale, which was of such quality that it quickly became known in English and Dutch translations.

At least three roads in Brittany bear his name, according to the 1997 book Les Noms qui ont fait l'histoire de Bretagne.