Mathieu is of French origin and means "gift of God." It is derived from the Latin word 'Matthaeus', which was used as a personal name before it became a given name in France during the Middle Ages. The name Mathieu has been popular in France for centuries, often ranking among the top 50 names for boys born in France each year since the 1960s. Outside of France, Mathieu is also used in Belgium and Canada, particularly in Quebec. In some cases, Mathieu may be spelled with an accent (Mathieu) or without (Matthew), although both spellings are pronounced similarly.
"Mathieu is a rare name, with only five births recorded each in 1997 and 2015, totaling ten."