Geert Chatrou is a professional whistler from the Netherlands.

Chatrou was born in Sint Odiliënberg in 1969.

[1] Chatrou won the International Whistler's Convention in 2004, 2005 and 2008 and was a judge at the IWC in 2010.

He was also awarded male Entertainer of the year in 2006 and 2010.

[2] He whistled the music for movies "Idiots and Angels" and "Le petit Nicolas".