Round Rock is an uninhabited island in the British Virgin Islands, to the south of Virgin Gorda, east of Ginger Island and close to Fallen Jerusalem Island.
The island provides habitat for the crested anole (Anolis cristatellus wileyae), the common Puerto Rican ameiva (Pholidoscelis exsul exsul), the Lesser Virgin Islands Skink (Spondylurus semitaeniatus), and the big-scaled least gecko (Sphaerodactylus macrolepis).