Smither is a surname. People so named include:
Beri Smither (born 1971), American modelBob Smither (born 1944), Libertarian Party Texas congressional candidateChris Smither (born 1944), American folk-blues singer, guitarist, and songwriterElizabeth Smither (born 1941), New Zealand poet and writerHenry Smither (1873–?), US Army officer and football coachDenise Orme, stage name of Jessie Smither (1885–1960), English music hall singer, actress and musicianMichael Smither (born 1939), New Zealand painter and composer, husband of Elizabeth SmitherSheryl Smither (born 1960), maiden name of USAF veteran, wife, and mother.