Zaidyn is a modern American spelling of Zayden, a name built on the popular -ayden pattern of Aiden and Jayden with a fashionable Z in front, so it means "Z plus Aiden" rather than carrying an old etymology; some parents also link it to the Arabic Zayd, "growth" or "abundance". The y spelling sets it apart from its many siblings. Zaidyn peaked at number 1443 in 2013 and ranks number 1941 in 2025.