Ukko-Pekka was the nickname of Finnish president Pehr Evind Svinhufvud.
Ukko-Pekka may also refer to:
Ukko-Pekka Luukkonen (born 1999), Finnish ice hockey player Ukko-Pekka (locomotive), the nickname of VR Class Hr1, a steam locomotive built in Finland
See also Ukko (disambiguation)