Zaiden is a modern American spelling of Zayden, a name invented in the 2000s by swapping the first letter of Aiden and Jayden for a bold Z; it has no meaning of its own, though parents sometimes borrow "growth" or "abundance" from the Arabic Zayd. Zaiden did not exist as a given name in 2000, entered the top 1000 in 2008, peaked at number 336 in 2013 and ranks number 609 in 2025.