The 1915 Newark Peppers season was a season in American baseball. After the 1914 season, the Indianapolis Hoosiers' remaining interest was purchased by Harry F. Sinclair and moved from Indianapolis, Indiana to Newark, New Jersey. The club also sold one of its top players, Benny Kauff, to the Brooklyn Tip-Tops to offset financial losses. After winning the Federal League championship the previous year, the Peppers dropped to fifth place. They finished 80–72, six games behind the Chicago Whales.

The Federal League of Base Ball Clubs, known simply as the Federal League, was an American professional baseball league that played its first season as a minor league in 1913 and operated as a "third major league", in competition with the established National and American Leagues, from 1914 to 1915.