Vorontsovo (; ) is a rural locality (a selo), one of two settlements, in addition to Olenegorsk, the administrative centre of the Rural Okrug, in Yukagirsky National Rural Okrug of Allaikhovsky District in the Sakha Republic, Russia. It is located from Chokurdakh, the administrative center of the district and from Olenegorsk. Its population as of the 2010 Census was 0; the same as recorded in the 2002 Census.
The village is located north of the Arctic Circle, in the lower course of the Indigirka, near the mouth of the Bolshaya Ercha.