Hugh Stuart Fullerton III (10 September 1873 – 27 December 1945) was an American sportswriter in the first half of the 20th century.

Fullerton wrote in a colorful style, including slang and human interest elements for the first time in sports journalism.

He made a name for himself by predicting that the weak-hitting Chicago White Sox would upset the crosstown-rival Chicago Cubs in 1906 World Series;[2] Fullerton rightly prognosticated that the White Sox would win Games 1 and 3, that the Cubs would win Game 2 and that it would rain on the fourth day.

[3] The Cubs had won 116 games that season and were favored to win; the White Sox had batted an anemic .230 with only seven home runs.

Fullerton's article for The Evening World, headlined "Is Big League Baseball Being Run for Gamblers, with Players in the Deal?

One year later, the eight White Sox ballplayers who participated in, or knew of, the plot to throw the series were banned from the game for life.