John Duane Hattig (born February 27, 1980) is an American former professional baseball third baseman who appeared in 13 games for the Toronto Blue Jays during the 2006 season. In the minor leagues, Hattig played in 836 games over 10 seasons, and posted a career .286 batting average. Hatting attended Southern High School in Santa Rita, Guam. Hattig attracted the attention of scouts on the recommendation of his uncle, Keith Hattig, who had played in the California Angels farm system. He was selected by the Boston Red Sox in the 25th round of the 1998 Major League Baseball draft.