Sein

Sein can refer to:

Places

 * Île-de-Sein, an island and commune in Brittany, France
 * Raz de Sein, a stretch of water in Brittany, France

People

 * Given name
 * Sein Aye, birthname of Sitt Nyein Aye (born 1956), Burmese artist
 * Sein Hlaing (1918-2010), Burmese footballer and coach
 * Sein Lwin (1923-2004), Burmese politician, 6th President of the Union of Burma
 * Po Sein (1882-1954), Burmese actor, singer and dancer
 * U Sein Than, Burmese land reform activist
 * Thein Sein (born 1945), Burmese politician and military commander, 8th President of Myanmar


 * Surname
 * Mai Šein (born 1946), Estonian architect

Fictional characters

 * Sein, character in Magical Girl Lyrical Nanoha Strikers

Other

 * SEIN: Société d'encouragement pour l'industrie nationale, organization established in 1801 to encourage French industry