| Constantin Dinu | |
| Birth Date: | 29 April 1945 |
| Birth Place: | Bucharest, Romania |
| Death Place: | Chitila, Romania |
| Ru Position: | Prop |
| Amatyears1: | 1960–1964 |
| Amatteam1: | Grivița Roșie |
| Amatapps1: | ? |
| Amatpoints1: | ? |
| Years1: | 1964–1968 |
| Clubs1: | Grivița Roșie |
| Apps1: | ? |
| Points1: | ? |
| Years2: | 1968–1973 |
| Clubs2: | Știința Petroșani |
| Apps2: | ? |
| Points2: | ? |
| Years3: | 1973–1983 |
| Clubs3: | Grivița Roșie |
| Apps3: | ? |
| Points3: | ? |
| Years4: | 1983–1984 |
| Clubs4: | Reggio Calabria |
| Apps4: | ? |
| Points4: | ? |
| Years5: | 1984–1987 |
| Clubs5: | RO Cholet |
| Apps5: | ? |
| Points5: | ? |
| Repyears1: | 1965–1983 |
| Repteam1: | Romania |
| Repcaps1: | 69 |
| Reppoints1: | 0 |
| Coachyears1: | 1983–1984 |
| Coachteams1: | Reggio Calabria (player-coach) |
| Coachyears2: | 1984–1987 |
| Coachteams2: | RO Cholet (player-coach) |
| Coachyears3: | 1987–1990 |
| Coachyears4: | 1990–1996 |
Constantin Dinu (29 April 1945 – 14 December 2022) was a Romanian rugby union player who played as a prop.[1]