Two Days and Two Nights of New Music (Ukrainian: Два дні й дві ночі нової музики) or 2D2N (Ukrainian: 2Д2Н) is an annual 48-hour music festival held in Odesa, Ukraine.

[2] The current president of the festival is German composer and conductor Bernhard Wulff.

Having grown steadily since its inception, 2D2N is considered one of the largest music festivals in Ukraine.

[3] The festival primarily features works of classical avant-garde and postmodernism created in recent years, representing various trends in both live and electronic, computer and acoustic music.

On the other hand, the festival does not shy away from new or unusual art forms for Ukrainian audiences, such as traditional art from Armenia, Korea, Mongolia, or Alaska.