First of all - my name is Ira, and I'm a girl! I think Ira is a masculine name mainly used in the USA. Also, Ira means "Hera" in Greek, who's the mother of all gods in Greek mythology.
Well, actually, Hera is not the mother of all gods in Greek mythology! Apollo and Artemis are children of Leto and Zeus; Dionysus is son of Semele; Hermes of Maia, etc. You seriously should read more and get informed before you comment. Hera is the Queen of the gods, now that's true, but not mother of them all.
Do NOT confuse the masculine form of Ira "EYE ra" with the feminine form "EE ra." They are not related linguistically.
Interestingly enough, there is a Welsh name, Eira, pronounced "EYE ra" (or possibly "AY ra" depending on the region in Wales.) This is also not to be confused with any of the above names.