Ema Rajić (born 24 February 2000) is a Croatian swimmer. She graduated from University Laboratory High School in 2018. She competed in the women's 50 metre breaststroke at the 2019 World Aquatics Championships and she did not advance to compete in the semi-finals. In 2019, she was part of the California Golden Bear's NCAA National Champions in the 400 medley relay and Runner-Up National Champions in the 200 yard medley relay held in Austin, Texas. She qualified and competed in the NCAA A final in the 100 yard breastroke where she finished 8th.