Howells is a Welsh surname. Notable people with the surname include:
Adele C. Howells (1886–1951), president of the Mormon children's organization Anne Howells (1941–2022), British operatic mezzo-soprano Callum Scott Howells (born 1999), Welsh actor Danny Howells (born 1970), English record producer and disc jockey David Howells (born 1967), English footballer Glenn Howells (born 1961), British architect Herbert Howells (1892–1983), English composer John Mead Howells (1868–1959), American architect Kim Howells (born 1946), Welsh Labour politician and member of Parliament Philip Arthur Howells (1855–1921), musical entrepreneur in South Australia Roger Howells, Welsh footballer Rosalind Howells, Baroness Howells of St Davids (1931–2025), English Labour politician Sarah Howells, British singer-songwriter and trance vocalist Ursula Howells (1922–2005), English actress William Dean Howells (1837–1920), American realist author and literary critic William W. Howells (1908–2005), professor of anthropology at Harvard