Dermot O'Reilly (1939–2007) was an influential Irish folk singer and songwriter, best known for his contributions to traditional Irish music. He was born in Dublin and later moved to the United States, where he became a prominent figure in the folk revival of the 1960s. O'Reilly was a founding member of the folk group The Dubliners, contributing to their signature sound with his powerful vocals and mastery of the tin whistle. He is also recognized for his solo work, including notable albums such as "Dermot O'Reilly" (1970) and "The Lonesome Boatman" (1976). One of his most enduring songs is "The Lonesome Boatman," which has been covered by various artists and remains a staple in the Irish folk repertoire. His impact on music lies in his ability to bridge traditional Irish sounds with contemporary folk, inspiring a new generation of musicians. O'Reilly's dedication to preserving and promoting Irish culture through music has left a lasting legacy, making him a cherished figure in the folk music scene. His work continues to resonate, influencing both traditional and modern interpretations of Irish music.