| Matthew Karwalski | |
| Nickname: | Killer |
| Residence: | Medowie |
| Birth Date: | 1985 12, df=yes |
| Birth Place: | Wagga Wagga, Australia |
| Height: | 1.830NaN0 |
| Weight: | 70kg (150lb) |
| Turnedpro: | 2007 |
| Retired: | Active |
| Plays: | Right Handed |
| Coach: | David Palmer |
| Racquet: | Grays |
| Website: | https://www.facebook.com/killer.karwalski |
| Event: | Men's singles |
| Highest Ranking: | No. 49 |
| Date Of Highest Ranking: | December, 2013 |
| Current Ranking: | No. 61 |
| Date Of Current Ranking: | November, 2014 |
| Titles: | 3 |
| Finals: | 7 |
| Updated: | November, 2014 |
Matthew Karwalski (born 3 February 1985 in Wagga Wagga) is an Australian professional squash player. He reached a career-high world ranking of World No. 49 in December 2013.[1] He participated in the WSF Men's World Team Championship 2013 in Mulhouse, France [2] and also represented Australia in the Glasgow 2014 Commonwealth Games.[3]