Sheil is a surname. Notable people with the surname include:
Ainslie Sheil (born 1933), rugby union player who represented AustraliaBernard James Sheil (1888–1969), Auxiliary Roman Catholic Bishop of ChicagoEdward Sheil (1851–1915), Irish nationalist politicianErnie Sheil (1906–1970), Australian rules footballerGlen Sheil (1929–2008), Australian politician representing the National PartySir John Sheil (born 1938), Lord Justice of Appeal in Northern Ireland from 2005 to 2007Kate Lyn Sheil, American independent film actressKate Sheil, Australian stage and television actressLaurence Sheil (1815–1872), Irish Franciscan friar, third Roman Catholic Bishop of AdelaideMartha Sheil, American operatic sopranoNorman Sheil (born 1932), retired racing cyclistRichard Lalor Sheil (1791–1851), Irish politician, writer and oratorWally Sheil (1929–2002), American education administrator and politician from Jersey City, New Jersey