Merrilliobryum is a genus of mosses in family Myriniaceae.

[1] Species of the genus are found in New Guinea and the Philippines.

[2] The genus name of Merrilliobryum is in honour of Elmer Drew Merrill (1876-1956), who was an American botanist and taxonomist.

[3] The genus was circumscribed by Viktor Ferdinand Brotherus in 1908.

The following two species are recognised in the genus Merrilliobryum:[1]