Rusi or RUSI may refer to:
Places in Romania Ruși River, Romania Ruși, a district in the town of Zlatna, Alba County Ruși, a village in Bretea Română, Hunedoara County Ruși, a village in Slimnic, Sibiu County Ruși, a village in Forăști, Suceava County Ruși, a village in Puiești, Vaslui
People Alpo Rusi (born 1949), Finnish diplomat Jukka Rusi (1935–2004), Finnish journalist and spy Lin Rusi, better known as Adet Lin (1923–1971), Chinese-American novelist and translator
Other uses Royal United Services Institute, a British defence and security think tank Republic of the United States of Indonesia, a former federal state Rusi (film), a 1984 Tamil-language Indian feature film
See also Ruși-Ciutea, a village in Letea Veche Commune, Bacău County, Romania Rușii-Munți, a commune in Mureș County, Romania