| Łukasz Grzeszczuk | |
| Birth Date: | 3 March 1990 |
| Birth Place: | Warsaw, Poland |
| Height: | 1.90 m[1] |
| Weight: | 95 kg |
| Sport: | Athletics |
| Event: | Javelin throw |
| Club: | Warszawianka Warszawa[2] |
| Coach: | Michał Krukowski |
Łukasz Grzeszczuk (born 3 March 1990 in Warsaw) is a Polish athlete specialising in the javelin throw. He represented his country at the 2013 World Championships without qualifying for the final.
His personal best in the event is 84.77 metres set in Riga in 2014.
| Representing | |||||
|---|---|---|---|---|---|
| 2009 | European Junior Championships | Novi Sad, Serbia | 3rd | Javelin throw | 73.55 m |
| 2011 | European U23 Championships | Ostrava, Czech Republic | 5th | Javelin throw | 79.02 m |
| Universiade | Shenzhen, China | 8th | Javelin throw | 75.65 m | |
| 2013 | Universiade | Kazan, Russia | 6th | Javelin throw | 77.98 m |
| World Championships | Moscow, Russia | 27th (q) | Javelin throw | 74.72 m | |
| 2014 | European Championships | Zürich, Switzerland | 13th (q) | Javelin throw | 77.74 m |
| 2016 | European Championships | Amsterdam, Netherlands | 11th | Javelin throw | 76.41 m |
| Olympic Games | Rio de Janeiro, Brazil | 31st (q) | Javelin throw | 76.52 m | |