The Melon Music Award for Song of the Year is one of the awards from the annual Melon Music Awards, an event that uses data from Melon's streaming service to celebrate artists who have had exceptional performance during the year. The Song of the Year category recognizes the top performing single in South Korea based on various metrics such as digital performance, voting, and judge evaluation.

The Melon Music Awards is a major music awards show that is held annually by Kakao Entertainment through its online music store Melon. The event was initially a fan-voted award conducted entirely online from 2005 through 2008, and has been officially held offline in Seoul since 2009.