Pawlusiak is a Polish-language surname. It is a patronymic surname derived from the nickname Pawluś, a diminutive from Pawel, or Paul.
Notable people with this surname include:
Anna Pawlusiak (born 1952), Polish cross-country skier Józef Pawlusiak (born 1956), Polish skier Stanisław Pawlusiak (born 1958), Polish ski jumper Tadeusz Pawlusiak (1946–2011), Polish ski jumper