A new and distinct Malus domestica Mill. apple tree variety named ‘Gaia’ particularly characterized by moderately vigorous tree with good habit. Highly productive with precocious fruit bearing. Resistant to scab. The fruit is big, larger than Gala, with a regular, rounded, slightly flattened shape. Less subject to cracking then Gala. Yellowish-green ground colour with striped red overcolour. The flesh is creamy, fine, crispy and juicy. The flavour is good, very sweet, similar to Galaxy but with a more intense aroma. Storage life comparable to Galaxy.