Lyle is a surname of Scottish origin which means "an island." It can be traced back to , 11th-century Lord of Duchal Castle. Notable people with the surname include: * Aaron Lyle (1759–1825), member of the US House of Representatives from Pennsylvania * Abram Lyle (1820–1891), sugar refiner * Adrienne Lyle (born 1985), US Olympic equestrian * Alexander Gordon Lyle (1889–1955), US Navy dentist and Medal of Honor awardee * Amalya Lyle Kearse (born 1937), US judge * Amos Lyle (1866–1943), politician of Manitoba, Canada * Bobby Lyle (born 1944), jazz pianist * Brayden Lyle (born 1973), Australian rules footballer * Dan Lyle (born 1970), American rugby union footballer * Derek Lyle (born 1981), footballer with Hamilton Accies in the Scottish Premier League * Ethel Hedgeman Lyle (1887