Aydin is a Turkish name that means "enlightened" or "bright", and it is also the name of a province in western Turkey. In the United States most parents reached for it as a fresh spelling of Aiden, so it rose and fell with that trend. Aydin entered the top 1000 in 2004, peaked at number 629 in 2008, held near number 850 through 2021, then dropped out and ranks number 1315 in 2025.