BAGHDAD — There haven’t been any Saddam sightings, yet. But he is still in the house, some Iraqis believe, and was heard from just this week.

Saddam Hussein would have turned 74 on Thursday, and a steady stream of people visited his grave site near his hometown, Tikrit, passing out sweets to fellow mourners and curiosity seekers.

But to some Iraqis he will never die.

Since the former dictator’s execution in December 2006, numerous conspiracy theories of the Elvis variety have percolated. And with precision timing on the eve of Mr. Hussein’s birthday, a new YouTube video landed that depicted an actual recent phone call between a member of Iraq’s Parliament and a man who claimed to be Mr. Hussein, whose voice and inflection so resembled that of the former dictator’s that it even gave pause to those who are convinced that Mr. Hussein is dead.

“When I heard Saddam’s voice on the Internet, I cried so much,” said Ahmed Kamil, 43, who was visiting the grave site. “I felt that I was dreaming.”