Haydn Ferrars Sherley QSM (29 March 1924 – 14 June 2007) was a well-known New Zealand radio personality.

During this time Sherley tutored such announcers as Paul Holmes, Kevin Black, Dougal Stevenson, Wayne Mowat, and Sharon Crosbie,[5] Relda Familton, Stewart Macpherson, Angela D'Audney, Lloyd Scott, and Lindsay Yeo.

Originally called Gentle on your Mind, and later Music to Midnight, the format of In a Mellow Tone continued for over thirty years.

After this temporary retirement, he returned to National Radio to continue with a number of projects, including such shows as Take Five and to narrate the series, Last of the World Wars.

During July and August 2007, Radio New Zealand National replayed a selection of In a Mellow Tone programmes from 2004 to 2006 as a tribute to Sherley.

Sherley retired for the final time in March 2007 following his last In a Mellow Tone programme, thus ending a career spanning over 50 years.