The closest one to WDW is in the Premium Outlets Mall on Vineland Rd. just off of 535. When leaving DTD take Hotel Plaza Blvd to the Crossroads intersection. Take a right on 535 at the light, you will go under the I-4 overpass. Take a left on Vineland (head for the Mary, Queen of the Universe Shrine) and the mall will be just a bit down the road on the right.
There are two Disney outlets in the Beltz outlet mall, but that is further away down I-Drive past Kirkman.