The oribatid mite family Gehypochthoniidae has a cosmopolitan distribution, however, is absent in the Ethiopian and Antarctic regions. This family consists of only one genus, Gehypochthonius Jacot, 1936, with eight species: G. antonii Lombardini, 1962 "sp. Inq" (distributed in Italy), G. frondifer Aoki, 1975 (Japan), G. gracilis Pankov, 2002 (East Asiatic Russia), G. marianoi Martinez and Bernava Laborde, 2000 (Argentina), G. rhadamanthus Jacot, 1936 (Semicosmopolitan), G. strenzkei Lee, 1982 (Australia), G. urticinus (Berlese, 1910) (Nearctic) and G. xarifae Strenzke, 1963 (Oriental) (Subias 2016). In this paper, we report the first record of the family Gehypochthoniidae and Gehypochthonius rhadamanthus from Iran.