Leslie Gap (Sedlovina Leslie \se-dlo-vi-'na 'les-li\) is an 359m high ice-covered saddle extending 2.8 km in south-north direction between Leslie Hill and Radnevo Peak on Varna Peninsula in northeastern Livingston Island in the South Shetland Islands, Antarctica. The saddle separates the glacial catchments of Kaliakra Glacier to the east and Saedinenie Snowfield to the west. It is part of the overland route from Bowles Ridge to Vidin Heights. The south extremity of the saddle features a minor but conspicuous ice-covered knoll of elevation 404 m just north of Leslie Hill.