Abel Nunatak () is the easternmost of two isolated nunataks on the south side of Broad Valley, Trinity Peninsula. The name arose at the time of the Falkland Islands Dependencies Survey (FIDS) geological survey in 1960–61 and is in association with nearby Cain Nunatak, after the biblical brothers Cain and Abel.
This article incorporates public domain material from the United States Geological Survey document "Abel Nunatak" (content from the Geographic Names Information System).