Switzerland was represented at the Eurovision Song Contest 1965 with the song "Non, à jamais sans toi", composed by Bob Calfati, with lyrics by Jean Charles, and performed by Greek singer Yovanna.

The Swiss Broadcasting Corporation (SRG SSR) held a national final on 6 February 1965 at 21:00 CET (19:00 UTC) in the Kursaal Theater in Locarno.

The voting consisted of a twelve-member "expert" jury presided over by Paul Henri Jaccard.

[3] The winner was Yovanna, with the song "Non, à jamais sans toi", written by Jean Charles and composed by Bob Calfati, who were both reportedly absent from the event.

At the close of voting, Switzerland had received eight points in total; the country finished eighth among the eighteen participants.