Mr Snowden has been nominated by two Norwegian MPs for the Nobel Peace Prize, a gong the President himself won in 2009.
Baard Vegard Solhjell, a former environment minister, and Snorre Valen said on Wednesday the public debate and policy changes "in the wake of Snowden's whistleblowing has contributed to a more stable and peaceful world order."
Mr Snowden, who had worked as a contractor for the National Security Agency, made global headlines beginning in June last year when he unleashed revelation after revelation about government snooping in various countries.
His releases sparked diplomatic grumbles aplenty. One of the more problematic was the revelation that US spies tapped the German Chancellor Angela Merkel's personal mobile phone.
Having fled the USA, initially for Hong Kong, he is currently in Russia under temporary asylum, though there have been hints that he could return to his native US, where the government deems him a criminal, under a plea bargain.
Late last year he was pipped to another august title - that of Time magazine's Person of the Year, which Pope Francis won.
In a joint statement, Solhjell and Valen said: "There is no doubt that the actions of Edward Snowden may have damaged the security interests of several nations in the short term.
"We are, however, convinced that the public debate and changes in policy that have followed in the wake of Snowden's whistleblowing has contributed to a more stable and peaceful world order.
"His actions have in effect led to the reintroduction of trust and transparency as a leading principle in global security policies." More