Sweden was represented at the Eurovision Song Contest 1966 with the song "Nygammal vals", composed by Bengt-Arne Wallin, with lyrics by Björn Lindroth, and performed by Lill Lindfors and Svante Thuresson. The Swedish participating broadcaster, Sveriges Radio (SR), selected its entry through a national final titled Svensk sångfinal.

Sweden scored 16 points and finished in 2nd place at the contest in Luxembourg, its highest ever placement at the time.

Before Eurovision

Svensk sångfinal

Svensk sångfinal (retroactively often referred to as Melodifestivalen 1966) was the selection for the eighth song to represent Sweden at the Eurovision Song Contest, held at the Cirkus in Stockholm on 29 January 1966. It was the seventh time that Sveriges Radio (SR) used this system of picking a song. 898 songs were submitted to SR for the competition. Regional juries selected the winning song. The show was hosted by Sven Lindahl and was broadcast on Sveriges Radio TV but was not broadcast on radio.

R/OArtistSongSongwritersPointsPlace
1Svante Thuresson"Hej systrar, hej bröder"Åke Gerhard67
2Monica Nielsen"En röd vals"Jan JohanssonKerstin Bergström58
3Carli Tornehave"Monte Carlo"Bengt-Arne WallinCarl Gyllenberg192
4Gunilla af Malmborg"Var finns du?"Ulf BjörlinLars Forssell85
5Gunnar Wiklund"Vinterrosor"Britt Lindeborg143
6Lill Lindfors and Svante Thuresson"Nygammal vals"Bengt-Arne WallinBjörn Lindroth261
7Ann-Louise Hanson"En ballad om för längesen"Robert MeyerGösta Rybrant94
8Carli Tornehave"Härliga Söndag"Bo-Göran EdlingPeter Himmelstrand85
9Gunwer Bergqvist"Vårens vindar"Torbjörn LundqvistMaud Lundqvist49
10Gunnar Wiklund"Vad har jag kvar"Berndt ÖstPeter Himmelstrand010

At Eurovision

Voting

Points awarded to Sweden
ScoreCountry
Points awarded to Sweden Score Country 5 points DenmarkFinlandNorway 3 points 1 point SwitzerlandPoints awarded by Sweden Score Country 5 points Luxembourg 3 points Norway 1 point Belgium
5 pointsDenmarkFinlandNorway
3 points
1 pointSwitzerland
ScoreCountry
5 pointsLuxembourg
3 pointsNorway
1 pointBelgium