| Eurovision Song Contest 1975 | ||||
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| Country |
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| National selection | ||||
| Selection process | Internal Selection | |||
| Selected entrant | Sergio y Estíbaliz | |||
| Selected song | "Tú volverás" | |||
| Selected songwriter(s) | ||||
| Finals performance | ||||
| Final result | 10th, 53 points | |||
| Spain in the Eurovision Song Contest | ||||
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Spain was represented by music duo Sergio y Estíbaliz at the Eurovision Song Contest 1975, held in , Sweden. Sergio y Estíbaliz were selected internally by Radiotelevisión Española (RTVE), the Spanish broadcaster, to represent the country at the contest in Sweden with the song "Tú volverás".
Sergio y Estíbaliz performed 17th in the night of the contest, following Portugal and preceding Sweden. At the close of voting they had received 53 points, placing 10th in a field of 19.