The tweet, which confused the South African leader with American civil rights activist Martin Luther King, was made to look like it had been written from the 32-year-old’s social media account.
It read: "RIP Nelson Mandela. Your 'I Have A Dream' speech was so inspiring. An Amazing man. (sic)”
Of course, Paris wrote no such thing, and she fired back at its creator and the bloggers who took it at face value.
“Whoever made that stupid fake tweet lacks respect to the loss the world is mourning right now. Same goes for all the blogs who ran with it,” she wrote.
She added: "I'm so sick of people lying about me & using my name. Please get a life & stop talking about mine. It's beyond."
Before the fake tweet went viral, the heiress posted a respectful message from her Twitter account in honour of the late leader, who died peacefully at age 95 in Johannesburg on Thursday.
"Just landed & heard the sad new about Nelson Mandela. He was a true Hero & the world is a better place because of him. May he rest in peace,” she wrote.