Daria Tatarinova (born 3 June 2004) is a Russian competitive swimmer. At the 2021 European Junior Swimming Championships, she won the gold medal in the 50 metre freestyle in European junior record time and won an additional three gold medals and one silver medal in four other events.
At the 2021 European Junior Swimming Championships held at the Stadio Olimpico del Nuoto in Rome, Italy, Tatarinova won her first medal in the 100 metre freestyle, swimming a personal best time of 55.12 seconds, which earned her the silver medal in the event. In the same evening she won the silver medal, the evening of 7 July, Tatarinova split a 54.56 on the third leg of the 4×100 metre mixed freestyle relay in the final to help earn the gold medal in the event and contribute to Russia taking over first place in the total medal table across the first two days of competition. The third day of competition, 8 July, Tatarinova won a gold medal as part of the 4×100 metre mixed medley relay, swimming the freestyle leg of the relay with a time of 54.66 seconds in the final to help the relay finish in 3:50.25. Day five, she led-off the 4×100 metre freestyle relay with a time of 55.29 seconds to contribute to the time of 3:40.10 in the final, which set a new Championships record in the event and earned the relay members the gold medal.
On the sixth and final day of competition, Tatarinova set a new European junior record and Championships record in the 50 metre freestyle with a personal best and gold-medal-winning time of 24.87 seconds. Speaking to LEN about her win, Tatarinova said, “It was very hard but rewarding as well. Russia has an important role in swimming, our athletes often succeed in making international podiums. We work hard, both swimmers and coaches.” Her performance led the Italian Swimming Federation to dub Tatarinova the “queen of fast” for the event.