FISSIDENS Hedw. is the unique genus in family Fissidentaceae Schimp. It is represented by only six taxa (out of ca. 440 species) in Saudi Arabia. In the present work three species, collected from Asir and Makkah regions, were recorded. One species (Fissidens crispulus Brid.) is a new record to Saudi Arabia, while the second (F. arnoldii R. Ruthe) is a new record to Makkah region and the third (F. crispus Mont.) was recorded previously from the study area. Key, comments, sites of collection, habitats, distributions and floristic elements of the three Fissidens species are given. The description, illustration and distribution map of the new recorded species in Saudi Arabia is also provided.