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In all the world, Йирка (Jirka , Йирка) is quite a common primarily masculine, but very infrequently female first name. The first name Йирка is characteristic of Czechia, where it is quite a common male name, Belgium, where it is a rare female name, and Finland, where it is a rare boy's name. Measured by absolute frequency, this name is the most popular in Czechia, Germany, and the Democratic Republic of the Congo. Much less frequently, Йирка is the last name as well as the forename.
Йирка is also a name for the fictitious and mythical characters: Jirka , the operatic character in the opera Die Teufelskäthe, The Devil and Kate and Jirka , the operatic character in the opera The Secret by Bedřich Smetana; a bell-ringer.