Seguin

Seguin or Séguín is a French and Gascon name. It is of Germanic origin (sig-, that is, "victory", cf. modern German Sieg, and -win, that is, "friend", related to modern English "win"). Seghin, Sigiwinus, Siguvinus, Siguinus, Siguin, Sigiwin, Sigwin, Sigoin and Segouin are variants.