Catholic charity Crosscare said it will distribute 60% more food throughout the Greater Dublin area this year than it did in 2013.
The organisation made the prediction as Archbishop Diarmuid Martin launched his second Christmas Diocesan Food Appeal.
Crosscare, which is the archdiocesan social support agency, has established four new food-banks over the past 12 months.
Speaking at the longest-established centre in Portland Row near the North Strand, Archbishop Martin asked all parishioners to bring supplies to their 199 parishes at next weekend’s mass times.
He said Crosscare will collect and redistribute them to those most in need.
Types of food urgently needed include pasta and rice, fruit juice, tea and coffee, soup, sugar, powdered milk, and canned meat, fish, vegetables and fruit, together with packaged dessert, biscuits, and hygiene products.
Crosscare gives food directly to people in need and to 70 other charities.