| OTI Festival 1975 | |
|---|---|
| Dates | |
| Final | November 15, 1975 |
| Host | |
| Venue | Telemundo TV Studios, San Juan, Puerto Rico |
| Presenter(s) | Marisol Malaret Eddie Miró |
| Musical director | Miguelito Miranda |
| Host broadcaster | Telemundo |
| Participants | |
| Number of entries | 19 |
| Debuting countries | None |
| Returning countries |  Argentina |
| Non-returning countries |  Honduras |
| Vote | |
| Voting system | Each country had 5 jurors and each of them voted for their favourite entry. |
| Winning song |  Mexico Gualberto Castro: La felicidad (The happiness) |
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The OTI Festival 1975 was the fourth edition of the annual OTI Festival. It took place in San Juan, Puerto Rico, following the country's victory at the 1974 contest with the song "Hoy canto por cantar" by Nydia Caro. Organised by the Organización de Televisión Iberoamericana (OTI) and host broadcaster Telemundo, the contest was held at Telemundo television studios on Saturday 15 November 1975 and was hosted by Marisol Malaret and Eddie Miró.
The number of participating countries repeated the record of the previous year of 19 countries. The winner was Mexico with the song "La felicidad", performed by Gualberto Castro.