No indication was given as to when sailings will resume as the company bids to finally face down a four-month-long series of simmering industrial disputes.
The announcement was made yesterday after a fresh wildcat action in France made sailings impossible.
“Following the series of strikes which has been disrupting our services, our Board has reluctantly taken the decision to tie up the fleet and to cancel all crossings with immediate effect, until further notice,” it said.
The move immediately affected passengers due to board at Roscoff for Cork yesterday afternoon.
The ferry company had originally advised these people to travel to Brest to board their ferry.
This was later cancelled altogether when the inbound ship, the Port Aven, was unable to dock.
Passengers were then advised, via Twitter, to drive 200km to Cherbourg in order to be put on alternative crossings.
The 2,400-passenger ferry had been due to arrive in Ringaskiddy this morning and return to France with departing passengers later.
However, Brittany Ferries said it could not continue to keep diverting passengers at short notice and instead decided to pull its service altogether.
“This decision has not been taken lightly, but we cannot subject our passengers to the ongoing uncertainty caused by wildcat strikes and cancellation of services at short notice.”