Kwaśniewski (feminine Kwaśniewska, plural Kwaśniewscy) is the surname of:
Aleksander Kwaśniewski (born 1954), Polish politician and journalist
Aleksandra Kwaśniewska, Polish singer-songwriter
Dorota Kwaśniewska (born. 1970) - Polish teacher and politician.
George Kwasniewski - Polish sociologist
Jan Kwaśniewski (born 1937), Polish physician
Janina Kwaśniewska (born 1928), Polish female sailor
Jerzy Kwaśniewski, Polish sociologist
Jolanta Kwaśniewska (born 1955), Polish lawyer and charity activist
Krzysztof Kwaśniewski, Polish sociologist
Maria Jadwiga Kwaśniewska-Maleszewska, née Kwaśniewska (1913, Łódź – 2007, Warsaw), Polish athlete
Mikołaj Kwaśniewski (1871 - 1941), Polish politician
Paweł Kwaśniewski (born 1963), Polish contemporary artist, performer
Rafał Kwaśniewski (born 1966), Polish rock guitarist/singer, songwriter
Stanisław Kwaśniewski (1886 - 1956), Brigadier General WP
Stefan Kwaśniewski (1898 - 1944), journalist, columnist, a member of the Warsaw Uprising
Walenty Kwaśniewski (1752 - 1813), Brigadier General WP
Włodzimierz Kwaśniewski – official of the Second Republic, connected with Lviv
Zbigniew Kwaśniewski (born 1948), Polish footballer
