Marek is a Czech, Polish and Slovak given name, the equivalent of Mark in English.
Some people with the given name Marek:
- Marek Belka, Polish economist and politician.
- Marek Bílek, Czech discus thrower
- Marek Borowski, Polish politician, the former leader of Sojusz Lewicy Demokratycznej and the former Speaker of the Sejm
- Marek Edelman, Jewish-Polish political and social activist, cardiologist, and the longest living leader of the Warsaw Ghetto Uprising
- Marek Gazdzicki, Polish nuclear physicist, the initiator and spokesperson of the NA61 Shine Experiment
- Marek Grechuta, Polish musician and songwriter.
- Marek Kaleta, Estonian javelin thrower
- Marek Kolbowicz, Polish rower
- Marek Krawczyk, Polish breaststroke swimmer
- Stanke Dimitrov, known under the pseudonym "Marek", Bulgarian communist
Additionally, several renowned footballers bear the given name Marek:
- Marek Čech, Slovak footballer
- Marek Čech, Czech footballer
- Marek Heinz, Czech football striker
- Marek Hamšík (1987–), Slovak footballer
- Marek Jankulovski, Czech football left-back of Macedonian origin
- Marek Saganowski, Polish football player
Marek is also featured in the name of a football team:
- PFC Marek Dupnitsa, a Bulgarian football team