65, is an orchestral composition by the Finnish composer Aulis Sallinen, who wrote the piece from 1989–90.
The New Zealand Symphony Orchestra, the commissioning institution, premiered the work on 6 September 1990 in Napier, under the baton of Sallinen's longtime advocate, Okko Kamu.
Sallinen and his wife had vacationed in New Zealand the year prior, providing the composer with inspiration for the symphony, which—though properly symphonic in scope and in structure—has been described as involving "tone painting"; indeed, each of the four movements contains a descriptive title, unusual for a Sallinen symphony.
6 has received two recordings, the first of which is from 1992 with Okko Kamu conducting the Malmö Symphony Orchestra on the BIS label.
Finnish conductor Ari Rasilainen has also recorded the symphony as part of cpo's compendium of Sallinen's orchestral works.