I never saw the [name]Malachy[/name] with a y. I assumed it was pronounced [name]Mala[/name]-kye, despite having gone to grade school with one. I don’t know what I thought of his name then - even though I can hear it in my head, an Irish last name, I thought it was [name]Indian[/name] - I had quite a lot of classmates from [name]India[/name] with [name]Indian[/name] names. I can’t actually picture him, I only remember seeing his name in notices or concert programs maybe, and hearing his name over the PA, just about every day (for some reason)… pronounced Ma-LAH-chee. I don’t know if this was how he (or his ignorant parents) really pronounced it or the assistant principal’s mistake, uncorrected for at least a few years.
I hope the worst you get is [name]Mala[/name]-kye if you intend to pronounce it [name]Mala[/name]-kee. I think it’s an interesting name, and people can be trained to say it correctly.