Zuckerberg founded what was then called “The Facebook” in his college dormitory in 2004.
The service was at first limited only to Harvard students before expanding to other Ivy League universities.
After receiving the honour on Thursday, Zuckerberg posted a photo of him with his parents Edward and Karen Zuckerberg.
He also updated his degree status on Facebook with a photo of himself and his parents.
“Mom, I always told you I’d come back and get my degree,” the billionaire wrote.
Zuckerberg, American computer programmer, was born May 14, 1984. His net worth is currently put at $61.9 billion.
The internet entrepreneur got his degree quicker than another famous Harvard dropout Bill Gates.
Gates who left to found Microsoft in 1975, did not receive his honorary degree until 2007.