We Canadians don't eat REAL ketchup on potato chips! It's a flavour that is like salted onto it... lol
You know, Salt n' Vinegar chips don't actually have Salt and Vinegar poured on them, this ketchup is more of an artificial ketchup flavour... you know??
We have BBQ potato chips, but I guess that's the closest you'll get. I don't think I would like ketchup potato chips. I don't even put ketchup on my fries most of the time.