Banasiak is a gender-neutral Polish surname that may refer to Adam Banasiak (born 1989), Polish football player Aleksandra Banasiak (born 1935), Polish nurse Aude Banasiak (born 1975), French football midfielder Justyna Banasiak (born 1986), Polish group rhythmic gymnast Mark Banasiak, Australian politician Piotr Banasiak (born 1987), Polish football player