Velveeta? I don't think so, and it doesn't appear on the online grocery stores (like Sainsburys) that I've looked at. The nearest thing I can think of are various brands of soft cheese triangles (these are packed 6-8 in a round box). I'm reasonably certain that the taste is not the same though. Darylea is one brand (made by Kraft as is Velveeta) so you could start there. Also I believe that Kraft SIngles are sold in the UK.