Companion or fellow traveler
Gatlyn is a modern variation of the English surname Gatlin. It is likely derived from the Old English word 'gædeling', which originally referred to a kinsman, companion, or comrade. While rare as a first name, it follows the contemporary trend of using surnames with the 'lyn' or 'lin' suffix.
Less common today
Gatlyn isn't in the latest US Top 1000. It last peaked at #4,256 in 2020.
US births per 5-year period, 1990βpresent (SSA data).