Ambroziak ( ) is a Polish surname. People with the surname include:
Ewa Ambroziak (1950–2023), Polish athlete Jeffrey Ambroziak (born 1966), American cartographer, inventor, and attorney Peter Ambroziak (born 1971), Canadian former professional ice hockey player, former coach and executive Sylwester Ambroziak (born 1964), Polish sculptor Zdzisław Ambroziak (1944–2004), Polish volleyball player