Can We Please Get It Right This Year?

[Evil Moo]

I would guess that it could be a misconception borne of only having heard people say Paddy. I have observed that many American accents consistently pronounce a lot of the 't's within words as 'd's. This could make the distinction between Paddy and Patty impossible to determine if you had somehow not seen it written down or not paid attention to its spelling.

Also not knowing the origins of the name could help further reinforce this misconception due to the already mentioned lack of 'd's in the modern spelling.

 

[Jadak]

So if I type it as "St.Patty's Day" it'll annoy people? Good to know.

Pretty much all I'm taking from this as well. Also, there's no "d" in Patrick, so I refuse to shorten it as "paddy" either way.

There is in Padraig, the Irish "Patrick", hence St. Paddy's Day. St Patty's Day isn't wrong it's just a mispronunciation due to the Latin Patrick as opposed to the Irish Padraig.

Edit: Or even Padraic, if you want to be confused further!

Good to know, although not being Irish, and since the official name over here isn't the Irish version, I'm still not doing it