French :

ftg : ferme ta gueule (shut it) ntm : nique ta mere (fuck your mom) slt : Salut (hello) cv : ça va ? (How are you?) ptn : putain (fuck) srx : sérieux (really?) jpp : j’en peux plus (I’m fed up)

Assuming you mean texting style acronyms, yeah, we have them in German and I’d assume in other languages too.

Alongside the stuff borrowed from English 1:1, there’s stuff like bb for “Bis bald” (See you soon) or hdl for “hab dich lieb” (Love you)

I’d assume other languages do the same out of efficiency or laziness.

Not necessarily an acronym, but here’s a fun one for Japanese: Laughing in Japanese is warau, which gets shortened when typing to just w. If you want to laugh a lot, you would type wwww. That ends up looking like a field of grass, so that in turn gets shortened into 草 (kusa, or grass). Basically, 草 is the Japanese equivalent of lol

Also, in Chinese, thank you is often abbreviated as 3q, because when you say it out loud, it sounds like “thank you” (san kyu)