Stone worker or son of May
Maysen is a modern phonetic spelling of the English surname Mason, which originally denoted a stone worker. It is also occasionally interpreted as a patronymic form of the name May. As a given name, it follows the contemporary trend of using surnames and 'y' spellings to create a unique identity.
Less common today
Maysen isn't in the latest US Top 1000. It last peaked at #2,474 in 2016.
US births per 5-year period, 1990βpresent (SSA data).