Blato may refer to:
- Blato, Korčula, a municipality on the Croatian island Korčula
- Blato, Mljet, a village on the Croatian island Mljet
- Blato, Zagreb, a neighborhood in Novi Zagreb, Croatia
- Blato na Cetini, a place in the Split-Dalmatia County, Croatia
- Blato River, a river in western Bulgaria, left tributary of Iskar
- Blato, Bulgaria, a village near Nevestino, Kyustendil Province, Bulgaria
- Mostarsko Blato
- Hutovo Blato