Howat is a surname. Notable people with the surname include:
Alexander Howat (1876–1945), Scottish-born American coal miner and labor leaderCameron Howat (born 1985), Australian rules footballerGerald Howat (1928–2007), British writer, historian and schoolmasterIan Howat (born 1958), Welsh footballerJohn Howat (born 1970), Australian rules footballerRoy Howat, Scottish classical pianist and musicologistRudolph Henderson Howat, Dean of Brechin from 1953 until 1957