At the end of each Major League Baseball season, the league leaders of various statistical categories are announced.[1] Leading either the American League or the National League in a particular category is referred to as a title.
The following lists describe which players hold the most titles in a career for a particular category. Listed are players with four or more titles in a category. Active players are highlighted.
* The 1910 American League batting title is disputed, with different sources giving the title to Ty Cobb or to Nap Lajoie or to both. See 1910 Chalmers Award.
§ In 1998, because of a mid-season trade, Randy Johnson led Major League Baseball in strikeouts, but neither the AL nor the NL.