Wiesberger recorded four top-10 finishes in 2011 European Tour season including two runner up finishes. He finished 64th on the Order of Merit.

Wiesberger claimed his maiden title on the European Tour in 2012 at the Ballantine's Championship, twice setting the course record and winning the championship by the margin of five strokes. The win moved him into the top 100 of the Official World Golf Ranking.