Osiecki (feminine: Osiecka; plural: Osieccy) is a Polish surname derived from the village Osieck, Mazovia, Poland. Notable people include: Agnieszka Osiecka (1936–1997), Polish writer Clarice Osiecki (1934–2007), American politician Mark Osiecki (born 1968), American ice hockey player and coach Piotr Osiecki (born 1961), Polish politician Sandy Osiecki (born 1960), American football player Stanisław Osiecki (1875–1967), Polish politician Stefan Osiecki (1902–1977), Polish painter
See also Ossietzky