The price of hams is expected to rise again next year.
People wanting to serve New Zealand ham at their Christmas dinner should order early or they may miss out, the pork industry says.
The warning comes amid predictions of a global pork shortage and news of a drop in New Zealand production of up to 30,000 pigs.
Some suppliers have already raised prices by up to 30 cents a kilo and the retail price is predicted to rise even more in the new year.
Globally, the production drop has been caused by rapidly rising feed prices, which have led to European herd sizes dropping by up to 13 per cent and the North American breeding herd hitting its lowest level in years.