Helis Nunatak (Nunatak Helis \'nu-na-tak 'he-lis\) is a crown-shaped rocky peak of elevation 340 m in Vidin Heights on Varna Peninsula, Livingston Island in the South Shetland Islands, Western Antarctica. The peak is named after the ancient Thracian capital town of Helis whose remains are located at Sveshtari, northeastern Bulgaria.

The peak is located at 62°32′25″S 60°04′40″W / 62.54028°S 60.07778°W / -62.54028; -60.07778 which is 3 km west of Edinburgh Hill, 1.9 km south of Sharp Peak and 1.85 km east-southeast of Madara Peak (Bulgarian mapping in 2005 and 2009 from the Tangra 2004/05 topographic survey).

• L.L. Ivanov et al. Antarctica: Livingston Island and Greenwich Island, South Shetland Islands. Scale 1:100000 topographic map. Sofia: Antarctic Place-names Commission of Bulgaria, 2005.
• L.L. Ivanov. Antarctica: Livingston Island and Greenwich, Robert, Snow and Smith Islands. Scale 1:120000 topographic map. Troyan: Manfred Wörner Foundation, 2009.
• A. Kamburov and L. Ivanov. Bowles Ridge and Central Tangra Mountains: Livingston Island, Antarctica. Scale 1:25000 map. Sofia: Manfred Wörner Foundation, 2023. ISBN 978-619-90008-6-1

• Helis Nunatak. SCAR Composite Antarctic Gazetteer
• Bulgarian Antarctic Gazetteer. Antarctic Place-names Commission. (details in Bulgarian, basic data in English)

• Helis Nunatak. Copernix satellite image

This article includes information from the Antarctic Place-names Commission of Bulgaria which is used with permission.