Twenty-one species of oribatid mites (Acari: Oribatida), including three new species, are reported from samples collected on the sub-Antarctic island of South Georgia. Fossonothrus wallworki n.sp., Lanceoppia elegantula n.sp. and Edwardzetes australis n.sp. are described and figured. Ten additional species, recorded previously, provides a total of 31 species for the island.