The Cumberland Arms is the closest gastropub to Olympia, just across the road at the top of North End Road.

If you're a fan of The Atlas in Earls Court, you'll be glad to know the Cumberland Arms is owned by the same people, and that means a delicious menu of Mediterranean dishes, great ales and a wine list to die for. The atmosphere is the perfect balance between genuine pub and a pleasant place to eat.

You can also reserve an area for larger gatherings - just contact them. 

Harden's London Restaurants put it well:

A pleasant, no-fuss pub near Olympia, with very helpful and smiley service and grub that’s a cut above.

The Cumberland Arms is a delight and highly recommended.