Jaxen is a modern spelling of Jaxon and Jackson, the English surname meaning "son of Jack"; Jack in turn is a medieval pet form of John, "God is gracious". The x spellings exploded in the United States in the 2000s, and Jaxen followed Jaxon into the top 1000 in 2009. It peaked at number 493 in 2013, left the top 1000 in 2021 and ranks 1462 in 2025.