Deividas Margevičius (born 26 April 1995) is a Lithuanian butterfly swimmer.

[2] With the best national season time (53.12) he was selected to represent Lithuania in 2016 Summer Olympics in the 4 × 100 m medley relay.

[3] In 2019, he competed at the 2019 World Aquatics Championships held in Gwangju, South Korea.

[4] On 20 September 2022 Margevičius announced about his retirement from professional sport.

This biographical article related to a Lithuanian swimmer is a stub.