In Viatrix's latest list of Aussie birth names, there is Charli Sarah Irene.
Odd mixture of styles, but it got me thinking. I was brought up to believe that Irene has three syllables - my parents knew a clergyman whose wife or house (can't recall which!) was named Irene, so that's what I heard. The only Irene people I've met here in South Africa have used the American version, ie-REEN. Though I have met an Irina ... don't suppose she counts.
So, what is happening/has happened in the UK, Australia and elsewhere? Does the three-syllabled version still survive anywhere? And, if you have a firm preference one way or the other, that'd be interesting.