Fallis is a surname. Notable people with the surname include:
Abigail Fallis (born 1968), British sculptor Albert James Fallis, Canadian politician Catherine Fallis Backus (1863–1955), American sculptor E.O. Fallis, American architect Edwina Hume Fallis (1876–1957), American educator Ian Fallis (1954–1977), Scottish football player Iva Campbell Fallis (1883–1956), Canadian politician Jacque Batt (died 2014), born Jacque Fallis James Robinson Fallis (1871–1935), Canadian politician Mary Lou Fallis (born 1948), Canadian opera singer Terry Fallis (born 1959), Canadian author William Armstrong Fallis (1832–1903), Canadian politician