Mirna

Mirna may refer to:

Places

 * Mirna (Adriatic Sea), a river in Croatia
 * Mirna, Iran, a village in Iran

in Slovenia

 * Mirna (Sava), a river in Slovenia
 * Mirna Valley, a valley in Slovenia
 * Mirna, Mirna, Slovenia; the seat of the eponymous municipality
 * Municipality of Mirna, a municipality in Slovenia
 * Mount Mirna, a hill in Slovenia

People

 * Mirna (name), a female name

Other uses

 * microRNA, abbreviated as miRNA
 * USS Mirna (SP-1214), a United States Navy patrol boat in commission from 1917 to 1918
 * Mirna-class patrol boat (Type 171), a Yugoslav patrol boat class