Peppiatt is a surname. Notable people with the surname include:
Ernest Peppiatt (1917–1979), English weightlifter Frank Peppiatt (1927–2012), Canadian television producer and screenwriter Kenneth Peppiatt (1893–1983), Chief Cashier of the Bank of England Lucy Peppiatt, British theologian and author Michael Peppiatt (born 1941), English art historian
Other uses Peppiatt and Aylesworth, Canadian television comedy team