Although they've been dominating the world of entertainment since the earty 20s, not all American comedians or artists did it out of America. Dany Kaye, Deanna Durbin, Abbott and Costello come to mind and many other thousands I don't know of by definition.
Among them is the trio known as the Three Stooges which I thought were British the first time I heard of them. I guess Laurel and Hardy were too much of an act to let The three Stooges have their chance on the world scene.
Here is a short I chose at random but someone may propose another one deemed funnier, I have no idea.
And here is a French episode of the Un gars/Une fille tv serial which I am a fan of. This one must be my favorite...