omg I know the feeling. had someone in college named this and I pronounced it the same way until she corrected me and I was so sorry 😭 an apology to Siobhans everywhere!

Yeah, and apparently it's the Irish equivalent of fucking "Joan" or similar. JFC.

For me it's, Saoirse

I have to look it up every time I see it.

I used to have a work friend named Siobhan and when I'd come home I'd mention her to my partner. Sometimes I would text him about her. He fully thought these were two different people for like a year.

Same here. One of my favorite bit-part actors is Siobhan Fallon, who played the wife of "Egger" in Men in Black. She absolutely stole the few scenes she was in. I didn't know I was mispronouncing her name for years.