The 39-year-old president and his wife Brigitte adopted a black labrador-griffon mix at the weekend, whom they have named Nemo after the captain in Jules Verne's science fiction classic, Twenty Thousand Leagues Under The Sea.
Nemo — who is aged between one and two and was adopted from a shelter for abandoned dogs — was glimpsed on Monday scampering around the Elysee Palace in a red collar, under the watchful eye of footmen in frock coats.
Every post-war French president has had a dog, who has the run of the palace's expansive gardens.
Most have picked a labrador, though World War II hero Charles de Gaulle had a pint-sized corgi — a gift from Britain's Queen Elizabeth.
Nemo succeeds Philae, a labrador named after the European Space Agency's comet lander that was gifted to ex-president Francois Hollande as a puppy by Montreal-based French war veterans.
Across the Atlantic, torrents of ink were spilt on ex-president Barack Obama's pet dogs Bo and Sunny.