Harry Potter and the Mysterious New Girlfriend!

On Wednesday, Daniel Radcliffe was photographed in NYC taking a stroll -- holding hands with a pretty young brunette.

So far, the identity of his new gal pal (wearing a loose purple tank top and leggings with her hair held back) has not yet been divulged.

The rather private Harry Potter star, 22, left a clue about a new love in his life during a July interview with Larry King on CNN. "I've got a girlfriend at the moment, who I am very much in love with," the British star teased. "So, you know, we'll see where that goes."

Last summer, Radcliffe was said to be dating Olive Uniacke -- the stepdaughter of a Harry Potter saga producer.

What kind of woman does Radcliffe favor? "Girls my own age are not really an option," he said in 2009. "I find, generally speaking, they have to be entertained more than older girls do."