Latvian mythology is the collection of myths that have emerged throughout the history of Latvia, sometimes being elaborated upon by successive generations, and at other times being rejected and replaced by other explanatory narratives. These myths, for the most part, likely stem from Proto-Indo-European practices and the later folk traditions of the Latvian people and pre-Christian Baltic mythology.

Latvians are a Baltic ethnic group and nation native to Latvia and the immediate geographical region, the Baltics. They are occasionally also referred to as Letts, especially in older bibliography. Latvians share a common Latvian language, culture, history and ancestry.