| Fullname: | Grigoriy Arkadyevich Tarasevich |
| National Team: |  Russia |
| Strokes: | Backstroke |
| Club: | Cardinal Aquatics |
| Collegeteam: | University of Louisville |
| Birth Date: | 1 August 1995 |
| Birth Place: | Omsk, Russia |
| Height: | 1.90 m |
| Weight: | 75 kg |
| Show-Medals: | yes |
Grigoriy Arkadyevich Tarasevich (Russian: Григорий Аркадьевич Тарасевич; born 1 August 1995) is a Russian swimmer. In 2013 he won the world junior title in the 50 m backstroke, setting a junior world record. He competed in the 50 m, 100 m and 200 m backstroke at the 2016 European Championships and won medals in the 50 m and 100 m, qualifying for the 2016 Summer Olympics in these two events; he placed sixth in the 200 m.
Tarasevich was born in a family of swimming coaches and took up swimming aged six. He trains and studies engineering at the University of Louisville.