Ukko
Ukko is the chief god in Finnish and Karelian folklore, the god of the sky, weather, and thunder, and often associated with the harvest. In traditional belief he was the supreme deity of the Finnic pantheon, sometimes called Taivaan isä, father of the gods and ruler of the weather.
Name and cognates: The deity's name, Ukko, is common across Finnic languages and survives in Estonian as
Iconography and myth: In folklore Ukko is the sky father whose thunder is produced by his hammer
Worship and influence: Historically, people invoked Ukko for favorable weather and harvest, and rites and charms
Legacy: Ukko remains a central figure in scholarly studies of Finnic mythology, and in contemporary Finnish