What Makes a Man

"What Makes a Man" is a song by Irish boy band Westlife. It was released on 18 December 2000 in the UK and Ireland as the third single from their second studio album, Coast to Coast. The song peaked at number two on the UK Singles Chart and was their first single not to peak at number one, being beaten to the Christmas number-one spot by "Can We Fix It?", the theme to the cartoon series Bob the Builder. It also debuted and peaked at number two in Ireland, held off the top spot by Eminem's song "Stan".

The song was the 39th-best-selling single of 2000 in the UK and received a gold sales certification for over 400,000 copies sold. It is the band's fifth-best-selling single in paid-for sales, and seventh-best-selling single in combined sales as of January 2019.