Rachenitsa Nunatak is the ridge 1.8 km long in south-north direction, with twin rocky heights extending 500 by 350 m with elevation 842 m, and 900 by 330 m with elevation 843 m respectively, situated in Nichols Snowfield, northern Alexander Island in Antarctica. The vicinity was visited on 2 February 1988 by the geological survey team of Christo Pimpirev and Borislav Kamenov, and Philip Nell and Peter Marquis.