绿叶蔬菜, 也称作叶菜，是植物叶子可以作为蔬菜烹饪、食用。 虽然可作为绿叶蔬菜的品种千差万别，但大多数都有相似的营养成分与烹饪方法。

全世界已知有近千种植物作为绿叶蔬菜。大多数都是生长周期短的草本植物，如白菜、生菜。木本植物但叶子可食用的包括香椿、桑等。

许多饲料作物的叶子也可供人类食用，但通常还是只作为家畜的饲料。例如苜蓿、紫花苜蓿、大多数禾本科的草叶包括小麦与大麦。这些作物通常比绿叶蔬菜的产量更高，但利用其营养成分更困难，主要是因为含有过高的膳食纤维。

Leaf vegetables, also called potherbs, greens, vegetable greens, leafy greens, or salad greens, are plant leaves eaten as a vegetable, sometimes accompanied by tender petioles and shoots. Although they come from a very wide variety of plants, most share a great deal with other leaf vegetables in nutrition and cooking methods.