1) Russian surname 
[inhabited locality] Sokolsky (Соко́льский; masculine), Sokolskaya (Соко́льская; feminine), or Sokolskoye (Соко́льское; neuter) is the name of several inhabited localities in Russia. ...
The Sokolsky or Sokolka is a Polish breed of heavy horse developed around the 19th century. They stand between 15 and 16 hands high and are chestnut, bay or brown in colour. They are a tough breed of horse with great stamina and a forward-going gait.