This list of mammals in Pennsylvania consists of 66 species currently believed to occur wild in the state. This excludes feral domesticated species such as feral cats and dogs.
Several species recently lived wild in Pennsylvania, but are now extirpated (locally, but not globally, extinct). They are the marsh rice rat (Oryzomys palustris), eastern wolf (Canis lycaon), American marten (Martes americana), wolverine (Gulo gulo), cougar (Puma concolor), Canada lynx (Lynx canadensis), moose (Alces alces), and bison (Bison bison).
- ^ "About Pennsylvania". Pennsylvania website. Archived from the original on 2009-10-14. Retrieved 2009-10-14.
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