| Birth Date: | 3 May 1941 |
| Birth Place: | Entraigues-sur-la-Sorgue, France |
| Height: | 5feet |
| Weight: | 11st[1] |
| Club1: | Avignon |
| Year1start: | 1962 |
| Year1end: | 73 |
| Appearances1: | 6 |
| Club2: | Cavaillon[2] |
| Year2start: | 1973 |
| Year2end: | 74 |
| Club3: | Entraigues |
| Year3start: | 1974 |
| Year3end: | 79 |
| Teama: | France |
| Yearastart: | 1965 |
| Yearaend: | 73 |
| Appearancesa: | 6 |
| Triesa: | 0 |
| Goalsa: | 0 |
| Fieldgoalsa: | 1 |
| Pointsa: | 1 |
| Ru Coachteam1: | Le Pontet |
| Source: | [3] [4] [5] |
Marius Frattini (20 June 1941 – 4 December 2023) was a French rugby league footballer who played in the 1960s and 1970s, as a .
Frattini played for Avignon, and later, for Cavaillon and Entraigues.[6] At international level, he also represented France between 1965 and 1973, including at the 1968 and 1972 Rugby League World Cups.[7] Outside the game, he worked as first-aid attendant.[8] He also coached Le Pontet before Guy Vigouroux took over.[9]
Frattini died on 4 December 2023, at the age of 82.[10]