Little fire or fighter
Khayden is a modern American invention, likely a creative spelling of Hayden. It combines the traditional Gaelic roots meaning 'little fire' with the contemporary trend of adding a 'K' prefix for a unique visual flair.
Less common today
Khayden isn't in the latest US Top 1000. It last peaked at #2,713 in 2013.
US births per 5-year period, 1990βpresent (SSA data).