Dashtserengiin Saintsetseg (; born September 19, 1990 in Erdenet) is a Mongolian swimmer, who specialized in sprint freestyle events. Dashtseren represented Mongolia at the 2008 Summer Olympics in Beijing, and competed for the women's 50 m freestyle event. She swam in the fourth heat of the competition, finishing in fifth place, with a time of 29.63 seconds. Dashtseren, however, failed to advance into the semi-finals, as she placed sixty-seventh in the overall rankings.