Memolli Nunatak (Bulgarian: нунатак Мемоли, ‘Nunatak Memolli’ \'nu-na-tak 'me-mo-li\) is the peak in Ellsworth Mountains, Antarctica rising to 2136 m[1] 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.