IMA Fungus, founded in 2010, is the flagship journal of the International Mycological Association (IMA).

The IMA represents the interests of mycology and mycologists worldwide, through a series of regional and national organizations, and is responsible for the International Mycological Congresses (IMCs). The journal considers contributions from all areas of mycology expected to be of interest to the wider mycological community, from basic research to applications.

IMA Fungus is mandated as the journal in which formal proposals relating to the rules on the naming of fungi or protected lists of names are to be published.