Howells is a surname. Notable people with the surname include:
Adele C. Howells (1886–1951), fourth general president of the Primary (children's organization) of The Church of Jesus Christ of Latter-day Saints (LDS Church).
Danny Howells (b. 1970), English record producer and disc jockey
David Howells (b. 1967), English footballer
Glenn Howells, British-born architect
Herbert Howells (1892–1983), English composer
John Mead Howells (1868–1959), American architect
Kim Howells (b. 1946), Welsh Labour politician and member of Parliament
Rosalind Howells (b. 1931), English Labour politician and member of House of Lords
Sarah Howells, British singer-songwriter and trance vocalist
Syd Howells, Welsh musician, artist and poet
Tyler Howells (b. 1983), American ice hockey player
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