Longfellow is a surname. Notable people with the surname include:
Alexander Wadsworth Longfellow Jr. (1854–1934), American architect Henry Wadsworth Longfellow (1807–1882), American poet and professor Ki Longfellow (1944–2022), American writer Malvina Longfellow (1889–1962), American stage and silent movie actress Mary King Longfellow (1852–1945), American painter Michael Longfellow (born 1994), American comedian and actor Richard M. Longfellow (1867–1951), United States Army Private Samuel Longfellow (1819–1892), American clergyman and hymn writer Stephen Longfellow (1776–1849), member of the United States House of Representatives