Megasporoporiella is a genus of five species of white rot poroid crust fungi in the family Polyporaceae. It was circumscribed in 2013 as a segregate genus of Megasporoporia. Characteristics of the genus include a dimitic hyphal structure, and skeletal hyphae that are weakly to moderately dextrinoid. Megasporoporiella has a primarily temperate distribution. The generic name refers to its similarity to Megasporoporia.