克瓦希尔（Kvasir），在北欧神话中比较奇特的一个人物，他不是神，是由阿萨神族和华纳神族共同创造出来的人类。但也有人认为他拥有神的身份，有时更直接归到华纳神族里面。

据说当阿萨神族和华纳神族结束长久的战争时，双方定下和平约定并交换人质，阿萨神族这边的代表是海尼尔（Honir）和密米尔（Mimir），华纳神族的代表是尼约德（Njord）、弗雷（Freyr）、弗蕾亚（Freya）。除此之外，双方还共同用唾液创造了一名人类，他就是克瓦希尔。

克瓦希尔由众神创造，据说拥有天下最高的智能，但他的智能并没有帮自己带来好处，反而来杀身之祸。侏儒法亚拉（Fjalar）和戈拉（Galar）杀了克瓦希尔，并用他的血酿酒，创造出只要喝一口就能拥有诗人才能的神奇蜜酒。一说最后这酒被奥丁用计骗到手，因此成了诗歌之神。

In Norse mythology, Kvasir was a being born of the saliva of the Æsir and the Vanir, two groups of gods. Extremely wise, Kvasir traveled far and wide, teaching and spreading knowledge. This continued until the dwarfs Fjalar and Galar killed Kvasir and drained him of his blood. The two mixed his blood with honey, resulting in the Mead of Poetry, a mead which imbues the drinker with skaldship and wisdom, and the spread of which eventually resulted in the introduction of poetry to mankind.