Cody Miller (born January 9, 1992) is an American competitive swimmer who specializes in the breaststroke.
At the 2016 Summer Olympics, Miller won a bronze medal in the men's 100 metre breaststroke and a gold medal in the men's 4 × 100 metre medley relay, in which he performed the breaststroke leg of the final.
Miller has won a total of seven medals in major international competitions: three golds, two silver, and two bronzes, spanning the long and short courses.