The Green and Red of Mayo is a song by the Saw Doctors. It first appeared on the album All the Way from Tuam in 1992.
It is an unofficial ballad of Mayo county football team supporters.
In 2026, several Irish regional newspapers reported the registration of a ".ie" domain name based on the opening lyric of the song that reached the 63-character DNS label limit, the maximum length permitted for a single domain label under internet naming standards.