Ukko is a deity in Finnish mythology, often regarded as the god of the sky, weather, and crops. He is associated with thunder and is sometimes depicted wielding a hammer or an axe. Ukko is considered a protector of farmers, ensuring good harvests and favorable weather conditions. In Finnish folklore, Ukko is often invoked during rituals and prayers for rain and fertility. He is sometimes compared to other thunder gods in various cultures, such as Thor in Norse mythology. Ukko's significance highlights the importance of nature and agriculture in Finnish life and traditions.