Cecil is a surname of Welsh origin. Notable people with the surname include:
Brett Cecil (born 1986), Canadian baseball pitcher
Chuck Cecil (born 1964), American football player
Edward Cecil, 1st Viscount Wimbledon (1572–1638), English political and military leader
Edward Cecil (disambiguation)
Henry Cecil (disambiguation)
Lord David Cecil (1902–1986), British biographer, historian and academic
Robert Cecil (disambiguation)
Robert Gascoyne-Cecil (disambiguation), several people
Malcolm Cecil (born 1937), British jazz bassist and Grammy Award-winning record producer
Rex Cecil (1916–1966), American baseball pitcher 1944–1945
William Cecil, 1st Baron Burghley or Lord Burghley (1520–1598), English statesman, the chief advisor of Queen Elizabeth I
