Leo van de Ketterij (14 November 1950 – 5 July 2021) was a Dutch guitarist mostly known for his work in Shocking Blue in the early 1970s.

The band from the Netherlands city of The Hague had a world hit at that time with Venus, that had been released the year before.

[4] Leo wrote the song "My heart can't handle that", that was performed by Soy Kroon, Dennis Weening and Thomas Cammaert.

Ketterij was married to Dutch singer Cindy Tamo.

Ketterij died of pancreatic cancer on 5 July 2021, aged 70.