Elmer Smith

• Elmer Smith , American lawyer and union defender
• Elmer Smith , baseball outfielder who played from 1914 through 1925
• Mike Smith , real name Elmer Ellsworth Smith, baseball outfielder who played from 1886 through 1901
• Elmer Roy Smith, politician in Ontario, Canada
• Elmer Boyd Smith, American writer and illustrator
• Elmer Smith , American football and basketball player and coach
• Elmer Smith Power Plant, a power plant in Owensboro, Kentucky