The Bersih 2.0 steering committee said it was proud its work had been acknowledged.
Bersih, in a statement, said it had gathered peacefully as many as four times in the city centre to seek a fair electoral system.
The award was to commemorate the spirit of the democratic fight by the people in Gwangju in 1980 when they stood up to the military regime in South Korea.
Bersih 2.0 was nominated by Indonesian activist Mugiyanto from the International NGO forum on Indonesian Development (INFID) and Malaysian activist Yap Swee Seng.
The award will be presented on May 18.