The couple, who got married in July, "decided on a name that's great in both the U.S. and France," according to People. It merges the duo's nationalities -- Berry is an American actress, and Martinez is French.
Maceo-Robert is Berry's second child. She has a 5-year-old daughter named Nahla Ariela Aubry, with her ex, French-Canadian model Gabriel Aubry. They settled a custody battle over the child in 2012.
So where does the name come from? Maceo is said to mean "gift of God" and have Spanish origins.