MKS Mazur Sierpc is a handball team based in the town of Sierpc, Poland. The team was founded in 1957 and has since become a prominent force in Polish handball. The team plays in the Polish Handball Superliga, the top tier of handball in Poland.

MKS Mazur Sierpc has a strong tradition of developing young talent and has produced several players who have gone on to represent the Polish national team. The team is known for its fast-paced, attacking style of play and its ability to score goals from a variety of positions on the court.

The team's home arena is the Hala Sportowa Sierpc, which has a capacity of 1,500 spectators. The team's colors are blue and white, and its logo features a stylized eagle, which is a symbol of strength and power.

MKS Mazur Sierpc has a dedicated fan base and is supported by a passionate group of supporters who attend every home game. The team has a strong sense of community and is committed to promoting the sport of handball in the Sierpc region.