Diet Coke Price at McDonald's (2026)
A Diet Coke costs €4.2 at McDonald's in Ireland (updated August 2026).
Based on the latest tracked prices, the Diet Coke® from McDonald's costs €4.20 in Ireland (August 2026). That's about 12% above the average McDonald's Cold Drink item — the 6th-cheapest of 15 we track. It's available at around 73 McDonald's locations across Ireland. Prices are sourced from delivery platforms and refreshed regularly. Set a free alert to know the moment this price changes on MenuPriceToday.
How this compares in Cold Drinks
15 items tracked| This item | €4.20 |
| Cold Drinks median | €4.20 |
| Cheapest — Fresh Irish Low Fat Milk | €2.25 |
| Most expensive — Mango & Pineapple Iced Fruit Smoothie | €5 |
| vs Cold Drinks median | 0% |
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