The Eurovision Young Musicians 2004 was the twelfth edition of the Eurovision Young Musicians, held at the Culture and Congress Centre in Lucerne, Switzerland on 27 May 2004. Organised by the European Broadcasting Union (EBU) and host broadcaster Swiss Broadcasting Corporation, musicians from seven countries participated in the televised final. Switzerland and broadcaster SRG SSR previously hosted the contest in 1984. A total of seventeen countries took part in the competition therefore a semi-final was held in the same venue on 22 and 23 May 2004. All participants performed a classical piece of their choice accompanied by the Lucerne Symphony Orchestra, conducted by Christian Arming.

Eurovision Young Musicians, often shortened to EYM, or Young Musicians, is a biennial classical music competition for European musicians that are aged between 12 and 21. It is organised by the European Broadcasting Union (EBU) and broadcast on television throughout Europe, with some countries holding national selections to choose their representatives for the contest.