Sozopol Gap (Sozopolska Sedlovina \so-'zo-pol-ska se-dlo-vi-'na\) is a partly ice-covered, 500 m long saddle in Delchev Ridge, Tangra Mountains, eastern Livingston Island in the South Shetland Islands, Antarctica bounded to the southwest by Petko Voyvoda Peak and to the northeast by Kaloyan Nunatak.