Monath is a name. Notable people who had or have this name include the following:
Given name
Monath Perera (1982–2011), Sri Lankan fighter pilot
Surname
Berndt Monath (born 1960), German historian Elizabeth Burger Monath (1907–1986), Austrian artist Hortense Monath (1905–1956), American pianist Martin Monath (1913–1944), German Jewish resistance fighter (1695–1747), German printer (1715–1788), German bookseller, son of Peter Conrad Monath