Son of Mack
A modern English patronymic surname-name meaning 'son of Mack'. The prefix 'Mack' often derives from the Gaelic 'Mac' meaning 'son', or as a diminutive of the Latin name Maximilian, meaning 'greatest'.
Less common today
Mackson isn't in the latest US Top 1000. It last peaked at #2,725 in 2016.
US births per 5-year period, 1990βpresent (SSA data).