Son of Maud; gift of God
Maddisen is a modern spelling variation of Madison. It originated as an English surname meaning 'son of Maud,' with Maud being a derivative of Matilda. It is also occasionally associated with the name Matthew, meaning 'gift of God.'
Less common today
Maddisen isn't in the latest US Top 1000. It last peaked at #4,000 in 1997.
US births per 5-year period, 1990βpresent (SSA data).