| Eurovision Song Contest 1973 | ||||
|---|---|---|---|---|
| Participating broadcaster | Televisión Española (TVE) | |||
| Country |  Spain | |||
| National selection | ||||
| Selection process | Internal Selection | |||
| Selected artist(s) | Mocedades | |||
| Selected song | "Eres tú" | |||
| Selected songwriter(s) | Juan Carlos Calderón | |||
| Finals performance | ||||
| Final result | 2nd, 125 points | |||
| Spain in the Eurovision Song Contest | ||||
| ||||
Spain was represented at the Eurovision Song Contest 1973 with the song "Eres tú", written by Juan Carlos Calderón, and performed by the vocal group Mocedades. The Spanish participating broadcaster, Televisión Española (TVE), selected internally both the song and the performer.