Hemithecium staigerae is a species of crustose lichen-forming fungus in the family Graphidaceae, described from India in 2005 by Bharati Adawadkar and Urmila Makhija. The species was named in honour of the lichenologist Bettina Staiger, and its holotype was collected in Tamil Nadu in January 1975. Robert Lücking and Klaus Kalb later opined that the lichen was "likely a species of Diorygma".