Cwyka joins League 1 Latics
The 18-year-old signed a three-year contract with Wigan after impressing boss Paul Jewell on a trial.
The Polish Under 21 star, the youngest ever to play at that level, has yet to make a first team appearance for the Premiership Latics.
Wigan boss Paul Jewell told the official website: 'Tomasz is a very gifted player and has improved every week since he joined us in the summer. However, I don't believe that just playing reserve team football will give him the experience he needs.
Wigan Athletic beat off competition from German giants bayern Munich to clinch the Polish ace.