The 51-year-old presents The Chris Evans Breakfast Show on BBC Radio 2 every weekday morning but less people have been tuning in.
In the second quarter of 2017, the star pulled in 9.01million listeners a week compared to 9.47million in the same timed period in 2016, according to the latest figures released by audience research body Rajar.
It comes after the former Top Gear host received backlash for toping the list of BBC's highest-paid stars with a salary bracket of £2.2million to £2.49million.
GETTY • WENNChris Evans' BBC radio 2 show has lost almost half a million listeners in a yearRelated articles
GETTYChris Evans has presented his breakfast radio show since 2010
Elsewhere, Nick Grimshaw's breakfast show on BBC Radio 1 has seen a huge increase in recent months with an extra 350,000 listeners tuning in.
The 32-year-old drew in 5.5million weekly listeners in the second quarter of this year, compared to 5.14million in the first.
BBC Radio 4's Today programme saw the biggest surge in