Rosny is the name of several places: *

Rosny, Tasmania Rosny is a suburb of the City of Clarence, part of the greater Hobart area, Tasmania, Australia. It is located on the eastern shore of the Derwent River (Tasmania), Derwent River, between the suburbs of Montagu Bay, Tasmania, Montagu Bay and Rosn ...

in Australia * Rosny-sous-Bois commune in the Seine-Saint-Denis ''département'' in France *

Rosny-sur-Seine Rosny-sur-Seine (, literally ''Rosny on Seine'') is a commune in the Yvelines department in the Île-de-France in north-central France. Population See also *Communes of the Yvelines department An intentional community is a voluntary residen ...

commune in the Yvelines ''département'' in France * Rosny, Nevada in

Lander County Lander County is a county in the U.S. state of Nevada. As of the 2020 census, the population was 5,734. Its county seat is Battle Mountain. History Lander County was created in 1862 as the result of a mining boom on the Reese River along the ...

, Nevada in the United States of America