Obtusifolium is a monotypic genus of liverworts belonging to the family Cephaloziellaceae.
The sole species of this genus, Obtusifolium obtusum <small>(Lindb.) S.W.Arnell</small> is found in Europe and Russia.
The genus and the species were described and published in Ill. Moss Fl. Fennoscandia. I. Hepat. 133 in 1956.