Can a Nintendo ds fit in a Nintendo ds lite case

It depends on the case, If you get a bigger case like a g-pak that holds your ds and accessories, then it will fit. If you are looking for more of an armor like the Nerf products then no. So just stay away from any form fitting cases... it can be tough to find cases for the older DS. Go some place that sells used cases, like GameStop and see if they have any... or you may find little laptop bags or camera cases that may fit it as well.