A small but highly interesting collection of terrestrial isopods from Oman is reported. The new species Xeroniscus siegfriedhuberi n. sp. and Somalodilloides pseudopilosus n. sp. are described and illustrated, and new records are given for the species Chaetophiloscia sp., Periscyphis omanensis, Xeroniscus erythraeus and X. troglophilus.