Sclavonia

Sclavonia may refer to:


 * Sclavonia, archaic English (via Latin) designation for the region of Slavonia, now part of Croatia
 * Sclavonia, archaic English (via Latin) designation for the region of Scalovia, in former Prussia
 * Occasionally, parts of the Kingdom of Hungary (Upper Hungary), inhabited by Slovaks
 * In general, a common Latin designation for various regions inhabited by Sclavoni (Slavs)