Antoon is both a given name and a surname. Notable people with the name include:
Given name:
Antoon Coolen (1897-1961), Dutch writer
Antoon Jozef Witteryck (1865-1934), Belgian writer
Antoon van Schendel (1910-1990), Dutch professional road bicycle racer
Antoon Verlegh (1896-1960), Dutch football player
Surname:
A. J. Antoon (1944-1992), American theatre director
John Antoon II (born 1946), American lawyer and judge
Sinan Antoon (born 1967), Iraqi American poet and novelist
Jason Antoon (born 1971), American actor