The name Irina is a girl's name of Greek, Russian origin meaning "peace". Irina and is often added to lists like Cool Girl Names From Around the World and discussed in our forums with posts like "Change One Letter".
From the experts:
Irina is a Russian ballet-inflected classic, one of the Three Sisters in the Chekhov play. While some Americans will pronounce this like Irene with three syllables, the pronunciation used throughout Europe, where it's widely used, starts with a short i as in it or if and a strong emphasis on the second syllable.