The name Maro is a boy's name of Hebrew, Latin, Japanese origin meaning "from Mars; bitter; or, myself". Maro and is often added to lists like Unique Baby Boy Names and discussed in our forums with posts like "Picky Parents BNG".
From the experts:
Maro is an ancient saints' name -- he was an Italian follower of St. Flavia and was martyred -- rarely used in modern life. The name Maro may stem from the Roman Marcellus, related to Mars, the god of war, or it may be a feminine form of Maria, connected with Mario. Maro is also a Japanese name meaning "myself."
And why couldn't Maro be more widely used today? As a masculine spin on stylish Mara, it certainly could.