Aimée Anne Duffy, known professionally as Duffy, is a Welsh singer and actress. She gained worldwide attention with her debut album, Rockferry, in 2008, which topped the charts in several music markets. The lead single "Mercy" reached number one in several countries and the top ten in twelve others. Duffy's musical style is a mix of soul, blue-eyed soul, pop rock, neo soul, and pop music. In 2009, she received the Grammy Award for Best Pop Vocal Album for Rockferry and won three out of four Brit Awards nominations. She made her acting debut in the film Patagonia in 2010 and released her second studio album Endlessly. After a hiatus from music, she returned in 2015, appearing in the film Legend and contributing three songs to its soundtrack. In 2020, Duffy revealed that she had been recovering after being abducted and raped, explaining her absence from the music industry. According to her official website, she is currently signed to Polydor Records, which operates under Universal Music Group. Duffy was born on 23 June 1984 in Bangor, Wales, and had a tumultuous childhood that included her parents' divorce and a brief period in a police safe house due to a murder plot involving her stepfather. Despite these challenges, she pursued her passion for music, eventually achieving international success.

Duffy is a surname of Irish origin, stemming from the Irish name Ó Dubhthaigh, meaning descendant of Dubthach, an Old Irish name signifying "black." The name has various forms such as Duffey, Duffee, Duff, Duthie, O'Duffey, O'Duffy, and more. It originates from Connacht and has been associated with numerous influential individuals across different nationalities.In Ireland, notable figures include Charles Gavan Duffy, an Irish nationalist poet and Australian colonial politician, and Eamon Duffy, a prominent historian. In Australia, figures like Charles Gavan Duffy, an Irish nationalist poet and later an Australian colonial politician, and Max Duffy, a player of Australian and American football, have brought recognition to the name. Additionally, in Scotland, figures like Carol Ann Duffy, the Poet Laureate of the United Kingdom, and in England, figures like Brian Duffy, a renowned photographer, have added to the diversity of achievements associated with the Duffy name.Furthermore, the name has made its mark in North America with figures such as Barbara Duffy, an American dancer, and Sean Duffy, a politician from Wisconsin. These individuals, among many others, have contributed to the legacy of the Duffy name across the globe.

George Edward "Duffy" Lewis (1888–1979) was a prominent American professional baseball left fielder who played for the Boston Red Sox, the New York Yankees, and the Washington Senators from 1910 to 1921. Known for his impressive career, Lewis formed the Golden Outfield with Tris Speaker and Harry Hooper and won three World Series championships with the Red Sox in 1912, 1915, and 1916. After his playing career, Lewis continued to contribute to baseball, managing in the minor leagues until 1929 and later serving as a coach and traveling secretary for the Boston Braves. His remarkable contributions to the sport led to his induction into the Boston Red Sox Hall of Fame and the Pacific Coast League Hall of Fame. Born in San Francisco, California, Lewis acquired his nickname from his mother's maiden name and began his professional baseball journey with the Alameda Grays of the California State League before making his mark in the MLB. Throughout his career, Lewis showcased exceptional batting skills and played a pivotal role in several championship victories, leaving an enduring legacy in the world of baseball.

Hugh Duffy Daugherty, born on September 8, 1915, was a renowned American football player and coach. He is best known for his tenure as the head coach at Michigan State University from 1954 to 1972, leading the team to national championships in 1965 and 1966. Daugherty's 19-season leadership of the Michigan State Spartans football team is the longest in the program's history. He was posthumously inducted into the College Football Hall of Fame as a coach in 1984.Daugherty was born in Emeigh, Pennsylvania, and played college football as a guard at Syracuse University before enlisting in the United States Army. Following his military service, he began his coaching career as an assistant at Syracuse and later moved to Michigan State University with head coach Biggie Munn. Daugherty's humorous quips during press conferences and his coaching prowess made him a well-respected figure in the football community.Under Daugherty's leadership, the Michigan State teams achieved significant successes, including multiple bowl wins and notable victories over rival teams. The high points of his coaching tenure were the 1965 and 1966 seasons, during which the Spartans were named national champions. Despite his passing in 1987, Daugherty's legacy continues to inspire football enthusiasts and aspiring coaches alike.

Betty Mona Desmond Ayers, also known as Duffy Ayers, was an esteemed English portrait painter. Born in Great Missenden, Buckinghamshire, she was recognized for her artistic talents and contributions to the art community. Duffy trained at the Central School of Art in London and later married the painter and printmaker Michael Rothenstein RA. The couple played pivotal roles in the renowned art community of the north Essex village, Great Bardfield, during the post-war era. Duffy's work mainly consisted of portraits and she participated in the 1955 Great Bardfield Artists’ summer exhibition. Following the dissolution of her first marriage, she settled in Bloomsbury, London, and married graphic artist Eric Ayers. Under the name Duffy Ayers, she continued to exhibit her work at the Royal Academy. Her notable oil portrait, "The Arrival" (1993), is part of the North West Essex collection at the Fry Art Gallery, Saffron Walden. In her later years, she resided in London and left behind a legacy survived by her children, Julian Rothenstein and Anne Rothenstein. Duffy Ayers celebrated her 100th birthday in September 2015 and passed away in November 2017 at the remarkable age of 102. Her artistic contributions continue to be celebrated and appreciated.