Akka (spirit)  Akka is a female spirit in Sami shamanism, and Finnish and Estonian mythology. Its worship was common and took the forms of sacrifice, prayer and various other rituals. Some Sámi believed it lived under their tents. As with other gods, its name appears within some geographical names, leaving a legacy of Sami presence. In Finnish mythology, Akka is the wife of Ukko and is the goddess of fertility. As they make love, thunder rolls. She can be seen as the female side of nature, "Maaemonen" "mother earth", whom Ukko fertilizes. In Estonian mythology, she is known as Maan-Emo.