Jimmy Layne Webb (born August 15, 1946) is an American songwriter, composer, and singer. He achieved success at an early age, winning the Grammy Award for Song of the Year at the age of 21. During his career, he established himself as one of America's most successful and honored songwriter/composers.

Webb has written numerous platinum-selling songs, including "Up, Up and Away", "By the Time I Get to Phoenix", "MacArthur Park", "Wichita Lineman", "Worst That Could Happen", "Galveston" and "All I Know". He had successful collaborations with Glen Campbell, Michael Feinstein, Linda Ronstadt, the 5th Dimension, the Supremes, Art Garfunkel and Richard Harris.

Webb was inducted into the Songwriters Hall of Fame in 1986 and the Nashville Songwriters Hall of Fame in 1990. He received the National Academy of Songwriters Lifetime Achievement Award in 1993, the Songwriters Hall of Fame Johnny Mercer Award in 2003, the ASCAP "Voice of Music" Award in 2006 and the Ivor Novello Special International Award in 2012. According to BMI, his song "By the Time I Get to Phoenix" was the third most performed song in the 50 years between 1940 and 1990. Webb is the only artist ever to receive Grammy Awards for music, lyrics and orchestration.