Mount's Bay (disambiguation)
Mount's Bay is a bay on the English Channel coast of Cornwall, United Kingdom. Mount's Bay or Mounts Bay may also refer to:

Mounts Bay RFC, a defunct rugby club formerly based in Penzance
Mounts Bay Road, Perth, Western Australia
Mounts Bay, in the Swan River Estuary, Perth
HMS Mounts Bay (K627), a Royal Navy ship
RFA Mounts Bay (L3008), a Royal Fleet auxiliary ship