Sofiivka () or Karlo-Marksove (; ) is a rural settlement in Yenakiieve urban hromada, Horlivka Raion, Donetsk Oblast (province) of Ukraine. Population:
The town was originally named "Karlo-Marksove", after the German-born political philosopher Karl Marx, but after 2014 it was renamed to Sofivka to abide by the Decommunization policies in Ukraine but it's effects were only de-jure since it was occupied by pro-russian DPR separatists which doesn't recognize Ukraine's legitimacy over Donetsk Oblast.
In 2023 the town as well as other parts of the DPR were annexed by Russia after a mostly unrecognized referendum.
Native language as of the Ukrainian Census of 2001: