Zemgale is the Latvian name for Semigallia, a historical and cultural region of Latvia.
Zemgale may also refer to: Zemgale Planning Region, a planning and statistical region of Latvia Zemgale Province, a province in Republic of Latvia (1918–1940) Zemgale Suburb, Riga, an administrative district of Riga, Latvia Semigallia (Saeima constituency), constituency of the Saeima, the national legislature of Latvia, known as Zemgale in Latvian Duchy of Courland and Semigallia, 1561–1795 Duchy of Courland and Semigallia (1918), a short-lived client state of the German Empire