Blatno may refer to places:
Czech Republic Blatno (Chomutov District), a municipality and village in the Ústí nad Labem Region Blatno (Louny District), a municipality and village in the Ústí nad Labem Region Blatno, a part of Hlinsko in the Pardubice Region
Slovenia Blatno, Brežice, a settlement in the Municipality of Brežice