Ossi

Ossi may refer to:

Organizations

 * Open Source Seed Initiative, dedicated to maintaining access to plant genetic resources
 * Open Source Software Institute, promoter of open-source software solutions in the US Federal, state and municipal government agencies

People

 * Ossi (East Germans), a nickname given to former residents of the country East Germany (GDR)
 * Ossian Ossi Blomqvist (1908–1955), Finnish speed skater
 * Oskar "Ossi" Bonde (born 1979), the drummer of the rock band Johnossi
 * Ossi Kauppi (1929–2000), Finnish ice hockey player
 * Ossi Oikarinen (born 1970), Finnish engineer who works in Formula One
 * Ossi Oswalda (1899–1948), German silent film actress
 * Ossi Reichert (1925–2006), German Alpine skier
 * Ossi Runne (1927–2020), Finnish conductor and composer
 * Ossi Sandvik (born 1953), Finnish politician

Other uses

 * Order of the Star of Italian Solidarity
 * Ossi, Sardinia, a city in the province of Sassari, Sardinia