Marphurius or Marforio (Italian: Marforio; Medieval Latin: Marphurius, Marforius) is one of the talking statues of Rome. Marforio maintained a friendly rivalry with his most prominent rival, Pasquin. As at the other five "talking statues", pasquinades — irreverent satires poking fun at public figures — were posted beside Marforio in the 16th and 17th centuries.

Marforio is a large 1st century Roman marble sculpture of a reclining bearded river god or Oceanus, which in the past has been variously identified as a depiction of Jupiter, Neptune, or the Tiber. It was the humanist and antiquarian Andrea Fulvio who first identified it as a river god, in 1527. The Marfoi was a landmark in Rome from the late 12th century. Poggio Bracciolini wrote of it as one of the sculptures surviving from Antiquity, and in the early 16th century it was still near the Arch of Septimius Severus, where the various authors reported it.