- Source: Lachezar Shumkov
- Lachezar Shumkov
- Bulgaria at the 2019 World Aquatics Championships
- Swimming at the 2010 Summer Youth Olympics – Boys' 100 metre breaststroke
- Bulgaria at the 2018 European Championships
- Swimming at the 2010 Summer Youth Olympics – Boys' 200 metre breaststroke
- Bulgaria at the 2017 World Aquatics Championships
- Swimming at the 2012 European Aquatics Championships – Men's 50 metre breaststroke
- Bulgaria at the 2015 World Aquatics Championships
- Bulgaria at the 2010 Summer Youth Olympics
- Swimming at the 2012 European Aquatics Championships – Men's 200 metre breaststroke
Lachezar Shumkov (Bulgarian: Лъчезар Шумков, born 28 February 1992) is a Bulgarian swimmer. He competed in the men's 50 metre breaststroke event at the 2017 World Aquatics Championships. In 2019, he represented Bulgaria at the 2019 World Aquatics Championships held in Gwangju, South Korea and he competed in the men's 50 metre breaststroke event. He did not advance to compete in the semi-finals.