| Birth Date: | 11 October 1982 |
| Birth Place: | Buenos Aires, Argentina |
| Height: | 1.77 m |
| Weight: | 74 kg |
| Sport: | Field hockey |
Lucas Rey (born 11 October 1982) is an Argentine field hockey midfielder, who plays club hockey in his native country for San Fernando. He is a member of the Men's National Team since 2002, and finished in 11th position at the 2004 Summer Olympics in Athens. Rey was also on the side ended up fifth at the 2003 Champions Trophy in Amstelveen, and won the 2005 Champions Challenge tournament in Alexandria, Egypt. Lucas has also won the bronze medal at the 2014 Men's Hockey World Cup, two medals at the Pan American Games and two Champions Challenge. He now works as a physical education teacher at Cardenal Pironio’s school, in Nordelta, Buenos Aires.