Jean Passepartout (French: [ʒɑ̃ paspaʁtu]) is a fictional character in Jules Verne's novel Around the World in Eighty Days, published in 1873.

His surname translates literally to "goes everywhere", but “passepartout” is also an idiom meaning "skeleton key" in French.

Passepartout, who has lived an irregular and well-travelled life, is looking forward to a restful employment, as Fogg is known for his regular habits which never take him farther afield than the Reform Club.

This critically delays Fogg before he is exonerated and the company arrives in London, seemingly too late and leaving Passepartout in almost suicidal despair at his foolishness.

Once Fogg learns of the error, he dashes to the Reform Club and arrives just in time to win the bet.