Matheus is the Portuguese form of Matthew, from the Hebrew Mattityahu meaning "gift of Yahweh" or "gift of God", the name of the apostle and evangelist. It is one of the most popular boys' names in Brazil, which is where most American families who use it have roots. In the United States Matheus peaked at number 1522 in 2007 and ranks 2201 in 2025 with 65 births.