| Ricardo Díaz | |
| Fullname: | Ricardo Díaz Bach |
| Birth Date: | 6 September 1939 |
| Birth Place: | Zacatecoluca, La Paz, El Salvador |
| Death Place: | San Salvador, El Salvador |
| Position: | striker |
| Youthyears1: | –1956 |
| Youthclubs1: | Comunicaciones |
| Years1: | 1962–1964 |
| Clubs1: | Universidad Concepción |
| Years2: | 1965 |
| Clubs2: | Huachipato |
| Years3: | 1966–1967 |
| Clubs3: | Juventud Olímpica |
| Years4: | 1968–1970 |
| Nationalyears1: | 1956 |
| Nationalteam1: | El Salvador |
Ricardo Díaz Bach (6 September 1939 – 8 August 2011) was a Salvadoran footballer.
Nicknamed el Nene, Díaz played club football in El Salvador, before going to Chile to play professionally at Universidad de Concepción and C.D. Huachipato.
Díaz was part of the El Salvador national football team that won Central American and Caribbean games in 1956.