The Obama administration, citing US intelligence sources, has accused Russia of orchestrating the hacking of emails from the Democratic National Committee and Hillary Clinton campaign chairman John Podesta in an attempt to influence the election's outcome.
The administration says it is "100% certain" about Russian involvement, but President-elect Donald Trump has frequently cast doubt on the veracity of the claims.
In interview that aired Tuesday on Fox News' "Hannity," Assange was asked if WikiLeaks' source of the hacked material was "Russia or anyone associated with Russia."
"Our source is not a state party. So the answer -- for our interactions -- is no," Assange told anchor Sean Hannity from his quarters at the Ecuadorian Embassy in London, where he has lived under diplomatic protection since 2012, CNN reported.
Pressed on the source of the emails leaked by WikiLeaks in the weeks and months leading up to the November election, Assange repeated, "Our source is not the Russian government. It is not state parties."
He was not asked directly if he believed Russia orchestrated the hacking.