Koltsov (Кольцов; masculine) or Koltsova (Кольцова; feminine) is a common Russian surname. It derives from the Russian nickname `Кольцо` (ring) ru. It is shared by the following people ... Found on http://en.wikipedia.org/wiki/Koltsov
1) Russian surname 
Koltsov (Кольцов; masculine) or Koltsova (Кольцова; feminine) is a common Russian surname. It derives from the Russian nickname `Кольцо` (ring) ru. It is shared by the following people ...