| Pietro Pontio | |
| Birth Date: | 25 March 1532 |
| Birth Place: | Parma |
| Death Place: | Parma |
| Nationality: | Italian |
| Other Names: | Ponzio |
| Occupation: | theorist, composer |
| Notable Works: | Ragionamento di Musica |
Pietro Pontio (or Ponzio; 25 March 1532 – 27 December 1596) was an Italian theorist and composer.
Pontio was born and died in Parma. He is best known for his 1588 treatise Ragionamento di Musica, which is thought to have influenced Claudio Monteverdi.