| Birth Name: | Mark Harry Aloto Diones |
| Fullname: | Mark Harry Diones |
| Nationality: | Philippines |
| Residence: | Mandaluyong |
| Birth Date: | 1 March 1993 |
| Birth Place: | Libmanan, Camarines Sur, the Philippines |
| Height: | 185 cm[1] |
| Weight: | 74 kg |
| Sport: | Athletics |
| Event: | Triple jump |
| Pb: | 16.70 m (2017) |
| Coach: | George Noel Posadas Sean Guevara Rohsaan Eugene Griffin |
| Alma Mater: | Jose Rizal University |
| Education: | Criminology |
| Show-Medals: | yes |
Mark Harry Aloto Diones (born March 1, 1993) is a triple jumper from the Philippines. In 2017 he won silver medals at the Asian Championships and Southeast Asian Games. He placed 12th at the 2018 Asian Games.