"Red Sails in the Sunset" is a popular song. Published in 1935, its music was written by Hugh Williams (pseudonym for Wilhelm Grosz) with lyrics by prolific songwriter Jimmy Kennedy. The song was inspired by the "red sails" of Kitty of Coleraine, a yacht Kennedy often saw off the northern coast of Northern Ireland and by his adopted town Portstewart, a seaside resort in County Londonderry. The title of the song provides the inspiration for the Red Sails Festival held annually in Portstewart, Northern Ireland. Kennedy wrote the song while staying in Portstewart.