Newcastle returned to the top of the Championship on Wednesday night, leapfrogging Brighton in the process.
The Toon are now on 46 points, with Brighton 45 and then there is an eight point gap to the play off spots.
The Newcastle opener came on 26 minutes – Mohamed Diame slotting home after a fine pass through from Isaac Hayden.
Despite their position in the relegation zone, Wigan did push for the equaliser and did go close on a few occasions.
Newcastle confirmed victory with 12 minutes remaining as Christian Atsu blasted home the second from a Yoann Gouffran assist.
After losing three on the bounce, Newcastle have now put two wins together on the trot and will be hoping to kick on over Christmas.
On Saturday, Rafa Benitez takes his Newcastle side to face Burton Albion.