"The Seashores of Old Mexico" is a country music song written by Merle Haggard. It was recorded by Hank Snow in 1971, Freddy Weller in 1972, Haggard himself in 1974, and in 1987 Haggard and Willie Nelson recut the song as a duet. Snow's version was a Top Ten hit in Canada, peaking at #6 on the RPM Top Country Tracks charts.

George Strait recorded a version, released as the last single, from his 2005 album Somewhere Down in Texas. Strait's version peaked at #11 on the Billboard Hot Country Songs chart in 2006. "The Seashores of Old Mexico" was nominated for Best Male Country Vocal Performance at the 2007 Grammy Awards.