I couldn’t believe my eyes when I saw the name “Olivier salad”, like, does someone know about our salad?! Funny enough, foreigners usually find this salad strange and too fat, because it’s meant to have really big amounts of mayonnaise and there are too many different ingredints for a salad. In other countries the salad means some green with light sauce, but here it means “slice everything you have in the fridge and put as many mayonnaise as possible”.
The US has similar things, we call pretty much any combo of meat + mayo a salad (ex; chicken salad, ham salad, etc), we also have things like macaroni/pasta salad, and of course potato salad.
Then there's weird stuff like "Jell-O Salad".