"My Lagan Love" is a song to a traditional Irish air collected in 1903 in northern Donegal. The English lyrics have been credited to Joseph Campbell (1879–1944, also known as Seosamh MacCathmhaoil and Joseph McCahill, among others). Campbell was a Belfast man whose grandparents came from the Irish-speaking area of , South Armagh. He started collecting songs in County Antrim. In 1904 he began a collaboration with composer Herbert Hughes. Together, they collected traditional airs from the remote parts of County Donegal.