Full name: Mamungkukumpurangkuntjunya (26 letters)
Short-forms:
Location: a hill in South Australia, Australia
Language: Pitjantjatjara
Translation: "Where the devil urinates"
Notes: The longest official one-word placename in Australia.
Full name: Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu (85 letters)
Short-forms: Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu (57 letters)
Location: A hill on North Island, New Zealand
Language: Māori
Translation: "The summit where Tamatea, the man with the big knees, the climber of mountains, the land-swallower who travelled about, played his nose flute to his loved one"
Notes: Listed in the Guinness World Records as the longest official placename in the world.