Open era (disambiguation)

Open era or Open Era may refer to:


 * Open Era, the period in tennis since 1968 where professionals can compete in Grand Slam tournaments
 * Open era sometimes refers to Mikhail Gorbachev's period of glasnost and perestroika in the Soviet Union

Open era or wide-open era, may also refer to:
 * Open range era of the American Old West when cattle were allowed to roam freely in many states
 * Early 20th century in many U.S. communities when gambling, prostitution, and/or other vices were tolerated by local governments. Among these communities were:
 * Galveston, Texas
 * Hot Springs, Arkansas
 * Atlantic City, New Jersey