The lawsuit seeks unspecified damages for defamation and names both Media TakeOut and Fred Mwangaguhunga.
Kim Kardashian was tied up by gun-wielding robbers who broke into a Paris flat earlier this month, police say.
They made off with jewelery worth about $10 million.
The lawsuit filed in federal court in New York said that after being “the victim of a horrific and traumatic armed robbery in France, Kim Kardashian returned to the US only to again be victimized, but this time by an online gossip tabloid that published a series of articles in early October 2016 referring to her as a liar and thief”.
The articles, the lawsuit said, “claimed, without any factual support whatsoever, that Kardashian faked the robbery, lied about the violent assault, and then filed a fraudulent claim with her insurance company to bilk her carrier out of millions of dollars”.
Fred Mwangaguhunga refused to publish a retraction and an apology “for calling her a liar and a criminal”, the lawsuit added.
Media TakeOut has so far not commented.
Kim Kardashian, 35, who is married to rapper Kanye West, became a household name thanks to the reality TV series Keeping up with the Kardashians.
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