| Marek Mašlonka | |
| Position: | Forward |
| Shoots: | Right |
| Height Ft: | 5 |
| Height In: | 11 |
| Weight Lb: | 187 |
| Played For: | HK Poprad MHK Kežmarok HK Spišská Nová Ves HK Nitra Arlan Kokshetau Ducs de Dijon Guildford Flames HK Dukla Michalovce |
| Birth Date: | 1987 1, df=yes |
| Birth Place: | Poprad, Czechoslovakia |
| Career Start: | 2006 |
| Career End: | 2022 |
Marek Mašlonka (born 17 January 1987) is a Slovak former professional ice hockey forward.
Mašlonka began his career with HK ŠKP Poprad and made his professional debut during the 2010–11 season. He also played for MHK Kežmarok and HK Nitra before moving to Arlan Kokshetau of Kazakhstan in 2013.