Pino III Ordelaffi (March 1436 – October 1480) was an Italian condottiero and lord of Forlì. He was a member of the Ordelaffi family.

The son of Antonio I Ordelaffi, he was the brother of Francesco IV Ordelaffi, lord of Forlì from 1448. In 1462 he married Barbara Manfredi, daughter of Astorre II, lord of Faenza.

In 1463 Pino fell ill: Francesco was suspected of having poisoned him, but he recovered. In 1466, as Francesco lay ill in turn, Pino's seized the city and assumed the lordship of Forlì and Forlimpopoli. Soon after also Barbara died, and Astorre Manfredi suspected him of her murder. Therefore Pino sought an alliance with Taddeo Manfredi, lord of Imola and rival of Astorre, to counter the latter's attempt to oust him with the help of the Pope. In the event, Pino also had his mother poisoned in 1467. In the same year he took part in the Battle of Molinella, where he was wounded.

Pino was a patron of the arts, building numerous edifices in Forlì; he also completed the construction of the walls and strengthened the Castle. A monument commissioned by Pino to Francesco di Simone Ferrucci for his wife Barbara's tomb can be seen in the Abbey of San Mercuriale in Forlì.

He died in 1480, being briefly succeeded by his son Sinibaldo before the acquisition of the Forlivese lands by Girolamo Riario.