Fiji's government received the grant from Nauru's Secretary for Foreign Affairs Michael Aroi who presented it in Suva on Friday.
Mr Aroi said the people of Nauru were saddened by the loss of lives and the devastation caused by Cyclone Winston.
He said Nauru was hopeful the donation would help the people of Fiji recover from the tragic ordeal.
Meanwhile, the Australian Navy ship, HMAS Canberra, had been deployed to Fiji with more than 800 personnel onboard to help with the country's recovery from Cyclone Winston.