Willan is a surname. Notable people with the surname include:
Anne Willan (born 1938), founded the Ecole de Cuisine La VarenneFrank Willan (1915–1981), English pilot, Royal Air Force officer and Conservative politicianFrank Willan (rower) (1846–1931), English rower and Militia officerHealey Willan (1880–1968), Anglo-Canadian organist and composerJason Willan, American soccer playerJohn Willan (1799–1869), English amateur cricketerRobert Willan (1757–1812), English physician and the founder of dermatology as a medical specialtyRobert Hugh Willan (1882–1960), British soldier