The 24-year-old star showed off his new look on Sunday during WhatsOnStage Awards, where he won best actor in a play for 'The Cripple of Inishmaan'.
"I don't mind how it looks, but I mind dealing with it. I don't know why any man would have it voluntarily. The amount of work it takes, having to dry it - doing anything to it is a... Nightmare," Radcliffe told the Telegraph.
"I do have a whole new sympathy for women. I wouldn't be growing my hair this long in my own time."