Denis Loktev (Hebrew: דניס לוקטב; born 6 April 2000) is an Israeli Olympic swimmer.

[10] In July 2016, Loktev won a bronze medal at the 2016 European Junior Swimming Championships in Hódmezővásárhely, Hungary, in the men's 4x200m freestyle.

[7] In June 2017, he won a bronze medal at the 2017 European Junior Swimming Championships in Netanya, Israel, in the men's 4x200m free.

At the ACC Championships, he won a silver medal as part of the 800 Free Relay team with a 6:11.26 -- the third-fastest time in school history.

[2] He also helped the 4x200 freestyle mixed relay finish sixth in the finals with a leadoff split of 1:47.66 as the team posted a 7:38.45.

[2] At the June 2024 European Aquatics Championships, Loktev teamed in the 200x4 freestyle with Bar Soloveychik, Eitan Ben Shetrit, and Gal Cohen Groumi and they finished 19 hundredths of a second from a bronze medal, as they came in fourth with a time of 7:09.92 minutes.

[26] He said that in the wake of the 7 October attacks: "We must do everything so that in the summer we can represent the country in the best possible way on the biggest stage in the world, the Olympic Games in Paris, and this is what gives me the motivation to train with all my might every day.