Jassy may refer to: Iași, a city in north-eastern Romania, former capital of the Principality of Moldavia History Treaty of Jassy, a pact between Russian Empire and Ottoman Empire ending the Russo-Turkish War (1787–1792) First Jassy–Kishinev Offensive and Second Jassy–Kishinev Offensive, two 1944 World War II major offensives People Jassy (surname), several people Jasz people, an ethnic group in Hungary, of Ossetic origin Culture Adath Jeshurun of Jassy Synagogue, a defunct synagogue Jassy, a novel by Norah Lofts Jassy (film), a 1947 British film melodrama adaptation of the novel See also Iasi (disambiguation) Yassy (disambiguation)