The results of the 2017 Little League World Series were determined between August 17 and August 27, 2017 in South Williamsport, Pennsylvania. 16 teams were divided into two groups, one with eight teams from the United States and another with eight international teams, with both groups playing a modified double-elimination tournament. In each group, the last remaining undefeated team faced the last remaining team with one loss, with the winners of those games advancing to play for the Little League World Series championship.