CNN confused the two in an unfortunate typo on 8 November in a TV news banner.
CNN aired the banner on Sunday evening US time
The banner reportedly appeared for less than a minute before being corrected, but that was long enough for eagle-eyed audience to take some screen shots and lampoon it for the mistake.
CNN's report was about the US Navy Seal who claims to have shot and killed Bin Laden in a May 2011 raid, who is under attack by his former comrades who dispute his version of events.
Osama Bin Laden was killed in a raid in Pakistan, and founded one of the largest terrorist organisations in the world, while Barack Obama runs the US and is very much alive.
It's not the first time Obama has been reported dead.
Fox News fell victim to the confusingly similar names on two occasions in 2011 when reporting Bin Laden's death. Its Sacramento affiliate Fox40 News reported that 'Obama Bin Laden' was dead, with another banner that was quickly removed.
Fox's affiliate made the mistake
A reporter on its affiliate channel News 5 even spoke the mistake out loud, telling viewers that their president was "telling the nation and the world President Obama is in fact dead."