Giovanni Pipino da Barletta (Giovanni Pipino I or just Giovanni Pipino, Latin: Iohannes Pipinus) (death: Naples, 1316) was an Italian nobleman and dignitary of the Kingdom of Naples. He started the Pipino noble family, which, after just a few decades, disappeared with the death (or exile) of his grandson Giovanni Pipino di Altamura and his brothers.
In his youth, he helped the Giudice Razionale Giozzolino della Marra in his job and he's often been mistakenly defined a notary or even an architect (because of his patronage in the construction of churches and other buildings); his first real job was Maestro Razionale (a sort of accountant of the kingdom). Later, because of his expertise, he was also appointed court dignitary and secretary for the financial matters of the whole Kingdom of Naples. He was known and appreciated by the kings he served because of his loyalty and high expertise in the financial matters.