Little fire or thinker
Keigen is a modern variant of the Irish name Keegan, derived from the Gaelic surname Mac Aodhagáin. It translates to 'son of Aodhagán,' with Aodh meaning 'fire.' It is also occasionally associated with the German word 'eigen,' meaning 'own' or 'characteristic.'
Fewer than 5 boys were named Keigen in 2025.
US births per 5-year period, 1990–present (SSA data).