Willem Duys (17 August 1928 – 2 June 2011) was a Dutch radio and television presenter, commentator, tennis player and music producer.

After retiring from tennis in mid 1956 Duys began writing for various music magazines and was invited to act as an announcer on AVRO in 1956.

From 1963 until 1979 he presented the TV program "Voor de Vuist Weg", generally considered to be the first talk show on Dutch television.

He regularly presented the Grand Gala du Disque and was a commentator for large tennis matches.

Duys also presented the Sunday morning radio show "Muziek Mozaïek" for four decades.