A worldwide shortage of bacon and pork next year is "unavoidable", according to Britain's National Pig Association.
The group says the European Union pig herd is declining at a "significant rate", a trend it said is mirrored across the globe, and warned prices could double by the end of next year.
"Pig farmers have been plunged into loss by high pig-feed costs, caused by the global failure of maize and soya harvests," the association said in a statement.
All the main European pig-producing countries have reported shrinking sow herds, the NPA said.
The group has launched the Save Our Bacon campaign, claiming an increase in prices so pig farmers can remain in production would help avert the crisis.