| Year: | 1963 |
| Country: | Spain |
| Broadcaster: | Spanish; Castilian: [[Televisión Española]]|i=no (TVE) |
| Flag Variant: | 1945 |
| Entrant: | José Guardiola |
| Song: | Spanish; Castilian: Algo prodigioso|i=no |
| Final Result: | 12th, 2 points |
Spain was represented at the Eurovision Song Contest 1963 with the song "Spanish; Castilian: Algo prodigioso|i=no", composed by Fernando Garcia Morcillo, with lyrics by Camillo Murillo Janero, and performed by José Guardiola. The Spanish participating broadcaster, Spanish; Castilian: [[Televisión Española]]|i=no (TVE), selected its entry through a national final.
Conflicting reports state that Spanish; Castilian: [[Televisión Española]]|i=no's (TVE) aim was to use the Spanish; Castilian: Festival de la Canción Mediterránea (Mediterranean Song Festival) as the national final, while others maintain that TVE's intention was to select internally one of the performers that had won a prize in one of the many song festivals that used to take place across Spain.[1] [2] José Guardiola had won the Mediterranean Song Festival 1962 with the song "Spanish; Castilian: Nubes de colores|i=no", but the result was declared null and void the day after the festival because a fix was discovered in the voting process. Paper ballots were sold to the audience in the hall; however, by the end of the festival, more ballots were counted in the box than the number that had been sold. TVE chose José Guardiola to represent Spain but with another song, "Spanish; Castilian: Algo prodigioso|i=no".
The Eurovision Song Contest 1963 was held on 23 March 1963 at the BBC Television Centre in London, United Kingdom. José Guardiola performed "Spanish; Castilian: Algo prodigioso|i=no" twelfth in the running order, following and preceding . Rafael Ibarbia conducted the event's orchestra performance of the Spanish entry. The song received two points from, placing twelfth in a field of sixteen.