Ukko was a god in Finnish mythology.
Ukko may also refer to:
Ukko (island), a lake island in Lapland, Finland Ukko Happonen (born 2007), Finnish footballer Ukko Hietala (1904–1990), Finnish pentathlete Ukko Peltonen (born 1998), Finnish cyclist 2020 Ukko, an asteroid Winter Storm Ukko, a March 2013 weather event in the United States
See also Ukko-Pekka (disambiguation)
Uko (disambiguation)