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 in 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, placed sixty-seventh in the overall rankings and failed to progress to the semi-finals.