is Venetia Phair , who, In 1930, at just 11 years of age, suggested calling the newly discovered ninth planet "Pluto", thus making her is the only (living) person in the world who can claim to have named a planet.
Mrs Phair is keen to scotch one rumour that grew up in the years after Pluto's discovery; namely that she had named the planet after Disney's cartoon dog, which also debuted in 1930.
"People were repeatedly saying: 'Ah, she named it after Pluto the dog'. It has now been satisfactorily proven that the dog was named after the planet, rather than the other way round. So, one is vindicated...." Read the All -together charming story of The girl who named a planet on the BBC's Site