But fellow winner and pro-democracy icon Aung San Suu Kyi will not be among them. She wasn't invited.
During her 15 years under house arrest, Suu Kyi won admiration across the globe for her fiery speeches and scathing criticism of the military regime that ruled Myanmar, or Burma, at the time.
After her release in 2010, when ruling generals handed over power to a nominally civilian government, she won a seat in parliament.
In a predominantly Buddhist country of 50 million people, where there is much animosity for the 1.3 million Rohingya Muslims, Suu Kyi (pronounced "Suu chee") has opted to remain silent, even as the world watched in horror while more than 3,000 hungry, dehydrated Rohingya and Bangladeshi migrants washed ashore in Malaysia, Indonesia and Thailand this month, according to the UN refugee agency.
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The international gathering today at the Nobel Institute in Oslo, Norway, will feature video statements from Nobel winners Desmond Tutu, Jose Ramos-Horta and Mairead Maguire.
They will focus on concrete ways to end the decades-long persecution of Rohingya -- and the need to speak out.
"If you are neutral in situations of injustice, you have chosen the side of the oppressor," Tutu, who won the 1984 Nobel Peace Prize for his opposition to South Africa's brutal apartheid regime, says in his video statement.
"If an elephant has its foot on the tail of a mouse and you say that you are neutral, the mouse will not appreciate your neutrality."
The freedoms of expression that accompanied early, now-stalled political reforms had a dark side, lifting the lid off deep-seated resentment toward the dark-skinned Rohingya minority.