Who is on the confederate 50 dollar bill?

Answer 1

There was no single design. Depending on when the bills were printed they had an allegorical image of a woman, images from mythology, and even George Washington.

Note that the great majority of supposed "Confederate" bills available today are actually replicas, not the genuine article. See the Related Link for more information.

Answer 2

Each state in the Confederacy issued its own bills so there was a huge variety of designs and denominations. Many $50 bills had a picture of the Confederate president Jefferson Davis, but others carried allegorical scenes, state officials, etc.