半韵是由发音相似但不相同的文本组成的一种韵。在大多数情况下，两句句子的元音不同，而辅音相同，反之亦然。

半韵常常在说唱音乐中使用。使用半韵可以给歌词的创作带来更大的自由度。

在英国文学里，也有偏爱用半韵的诗人，最著名的有威廉·巴特勒·叶芝和威尔弗雷德·欧文。

Half rhyme or slant rhyme, sometimes called near-rhyme or lazy rhyme, is a type of rhyme formed by words with similar but not identical sounds. In most instances, either the vowel segments are different while the consonants are identical, or vice versa. This type of rhyme is also called approximate rhyme, inexact rhyme, imperfect rhyme (in contrast to perfect rhyme), off rhyme, analyzed rhyme, or suspended rhyme.