McMath is an impact crater on the Moon's far side. It lies to the south-southwest of the prominent crater Jackson, and material from the ray system centered on Jackson lies across most of McMath. Farther to the south lies the crater pair of Zhukovskiy and Lebedinskiy.
This is a worn, torn up, and eroded crater formation with several small craters along the rim edge. The rim is the most heavily worn at the northern end, but is more intact to the east and west. The interior floor is relatively level, and is marked by only a few tiny craterlets.
Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". Space Science Reviews. 12 (2): 136–186. Bibcode:1971SSRv...12..136M. doi:10.1007/BF00171763. S2CID122125855.