Mariusz is a Polish given name of Latin origin, derived from the Roman family name Marcius, which is believed to be derived from Mars, the Roman god of war. The name Mariusz is often associated with strength and valor, reflecting its warrior roots. In Poland, it has been used since the Middle Ages, but it gained popularity in the 20th century due to several notable figures bearing the name, such as Mariusz Kaminski, a well-known Polish actor.
"Mariusz saw its peak popularity during the early 1990s with 11 births in 1993 and consistently remained popular throughout the 2000s."