Haiden is an American respelling of Hayden, an English surname and place name from the Old English for "hay valley" or "hay hill". The -aiden spelling ties it to Aiden, Jaiden and Kaiden, the rhyming group that dominated boys' names in the 2000s. Haiden entered the top 1000 in 2004, peaked at number 779 in 2008, dropped out again after 2015 and ranks number 1306 in 2025.