Łasiński or Lasinski is a surname of Polish origin. Notable people with the surname include: Barbara Lasinski, American laser physicist Donna Lasinski (born 1968), American politician and Michigan representative (1874–1935), Polish inventor, teacher at Karol Marcinkowski High School John Lasinski, 1936 US national amateur boxing light heavyweight champion
See also Starofarny Cemetery in Bydgoszcz, housing a chapel of the Łasiński family