The initiative will mix up flavours to create new limited editions, including cheese and pickle, bacon and ketchup and barbecue chicken across its core crisps range, while Quavers is getting a new cheese and bacon offering.
One pence from every pack, 6p from every six-strong multipack and 10p from every 10-strong multipack will be donated to Comic Relief, while a ‘star-studded’ TV ad to support the new products will hit screens on February 17.
This year’s biennial Red Nose Day takes place on March 11.
During the last event, in 2003, Walkers raised £1.3m through donations from its baked-bean flavoured versions of crisps and Monster Munch.
PepsiCo trade marketing manager Nicky Seal said: “This will allow us to raise money for great causes and retailers can take advantage of TV advertised products.”