Sumna may refer to places:
Șumna, a commune in Moldova Šumná, a municipality and village in the South Moravian Region, Czech Republic Šumná, a part of Klášterec nad Ohří in the Ústí nad Labem Region, Czech Republic Šumná, a part of Litvínov in the Ústí nad Labem Region, Czech Republic Şumna, a variant name of the city of Shumen, Bulgaria
See also Šumná města, Czech documentary series