Gem City

Gem City may refer to:


 * Gem, Indiana
 * Gem, Kansas

It may also refer to any of the following cities which are known by the nickname Gem City:


 * Monrovia, California, the "Gem City of the Foothills"
 * Quincy, Illinois
 * Diamond, Missouri, the "Gem City of the Ozarks"
 * Dayton, Ohio
 * Toronto, Ohio
 * Erie, Pennsylvania
 * Lynden, Washington
 * Laramie, Wyoming, the "Gem City of the Plains"
 * Palatka, Florida, the "Gem City of the St. Johns River"