Memolli Nunatak (Bulgarian: нунатак Мемоли, ‘Nunatak Memolli’ \'nu-na-tak 'me-mo-li\) is the peak in Ellsworth Mountains, Antarctica rising to 2136 m at the end of the side ridge that trends 14.3 km northwestwards from the peak standing on the main crest of north-central Sentinel Range just north of Mount Hale. It has steep and ice-free east and south slopes.

The nunatak is named after Mariano Arnaldo Memolli, Director of the Argentine National Antarctic Directorate, for his support for the Bulgarian Antarctic programme.

Memolli Nunatak is located at 78°00′58.6″S 86°34′20″W / 78.016278°S 86.57222°W / -78.016278; -86.57222, which is 13.73 km west of Mount Goldthwait, 1.74 km north-northwest of Silyanov Peak, 11.35 km east-northeast of Kovil Nunatak, 22.1 km southeast of Helfert Nunatak and 11.8 km south-southwest of Mursalitsa Peak. US mapping in 1961.

• Newcomer Glacier. Scale 1:250 000 topographic map. Reston, Virginia: US Geological Survey, 1961.
• Antarctic Digital Database (ADD). Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly updated.

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

• Memolli Nunatak. Copernix satellite image

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