Lukáš Lacko
| Country (sports) | Slovakia | 
|---|---|
| Residence | Bratislava, Slovakia | 
| Born | 3 November 1987 Piešťany, Czechoslovakia  | 
| Height | 1.85 m (6 ft 1 in) | 
| Turned pro | 2005 | 
| Retired | 2022 | 
| Plays | Right-handed (two-handed backhand) | 
| Coach | Dominik Hrbaty | 
| Prize money | US$ 3,602,283 | 
| Singles | |
| Career record | 98–148 | 
| Career titles | 0 | 
| Highest ranking | No. 44 (14 January 2013) | 
| Grand Slam singles results | |
| Australian Open | 3R (2012, 2017) | 
| French Open | 2R (2010) | 
| Wimbledon | 3R (2012, 2016) | 
| US Open | 1R (2010–18) | 
| Other tournaments | |
| Olympic Games | 1R (2012) | 
| Doubles | |
| Career record | 6–32 | 
| Career titles | 0 | 
| Highest ranking | No. 170 (5 July 2010) | 
| Grand Slam doubles results | |
| Australian Open | 1R (2010, 2011, 2013) | 
| French Open | 1R (2010, 2012, 2013) | 
| Wimbledon | 3R (2010) | 
| US Open | 2R (2010) | 
| Last updated on: 21 November 2022. | |
Lukáš Lacko (Slovak pronunciation: [ˈlukaːʂ ˈlatskɔ]; born 3 November 1987) is a former professional Slovak tennis player. His career-high ATP singles ranking is World No. 44, achieved in January 2013.