| Avelino Guillén | |
| Office: | Minister of the Interior |
| Term Start: | 4 November 2021 |
| Term End: | 1 February 2022 |
| President: | Pedro Castillo |
| Primeminister: | Mirtha Vásquez |
| Predecessor: | Luis Barranzuela |
| Birth Name: | Avelino Trifón Guillén Jáuregui |
| Birth Date: | 10 November 1954 |
| Birth Place: | Chincheros, Peru |
| Profession: | Lawyer, judge |
| Alma Mater: | University of San Martín de Porres |
Avelino Trifón Guillén Jáuregui (born 10 November 1954) is a Peruvian lawyer and politician. Since 4 November 2021, he has been Minister of the Interior of Peru in the Pedro Castillo government.[1]