It's possible you're thinking of a golden tabby cat, or perhaps a tiger with an unusually light or golden-toned coat.
To answer your question accurately, I would need to know more about what kind of tiger you're referring to.
How many golden tigers are there left in the world?
There is no such thing as a "golden tiger". Tigers can have different coat patterns and colors, but there is no recognized subspecies or breed called "golden tiger".