Coke Zero, which is a calorie-free drink, will become only the third variant in the Coke range; the last was Diet Coke in 1984. It is expected to be given a substantial launch in the UK.
A spokeswoman for Coca-Cola confirmed that Coke Zero will be rolled out in the UK this year, although it is thought unlikely that it will hit the shelves before September.
The product will be aimed at young adult males, who don't traditionally buy diet drinks, and will compete directly with Pepsi Max, which has a relatively masculine positioning.
Coke Zero, which was launched first in the US last June, is also available in Canada and Australia.