Switzerland competed in the Eurovision Song Contest 2009. The Swiss broadcaster, SRG SSR idée suisse, internally selected Lovebugs to represent the country with the song "The Highest Heights". The song did not progress from the first semi-final of the competition.

Switzerland debuted at Eurovision at the first contest in 1956, and will send its 50th entry to the 2009 contest. The country has won the contest twice: their first win occurred at the very first contest, when Lys Assia won for Switzerland with "Refrain" when the contest was held in Switzerland, in the town of Lugano; their second and latest win to date came in 1988, when Canadian singer Céline Dion won with "Ne partez pas sans moi". The country, however, has also come last in the contest on five occasions: in 1964, 1967, 1974, 1998 and in the semi-final of the 2004 Contest.

The Swiss broadcaster SRG SSR idée suisse has been in charge of the Swiss Eurovision entry since its interception. In the past the organisation has held a national final to select the Swiss entry to Eurovision, with each regional broadcaster entering songs to the contest. Since 2005, however, the organisation has held an internal selection for the Swiss Eurovision entry, which was continued for the 2009 selection.

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