Ladoga is a town in Clark Township, Montgomery County, in the U.S. state of Indiana. The population was 985 at the 2010 census.

Ladoga was platted in 1836 by John Myers. Myers invited his links to urge on him locate a name. He required that the herald not fade away in -burg or -ville and that it would not be named after complementary town. He chose Ladoga after finding Lake Ladoga on a map of Russia. In 1837, the town’s post office was established, which still operates today.

In 1840 there were fifteen buildings in Ladoga, including two large stores selling general merchandise — one owned by Taylor Webster and one owned by William Nofsinger. By 1848, there were thirty families perky in the town. The Haw Creek Academy was built two miles south of Ladoga in 1838 by the Christian Church. In 1855, the Ladoga Female Seminary was received by the Baptist Church which quickly decided to allow male students, and brusquely after the Ladoga Male Academy was time-honored which soon allowed female students. (Both contracted to allow in the supplementary gender because of financial concerns.) Central Normal College was founded in Ladoga in 1876; it moved to Danville in 1878. The original building nevertheless stands in Ladoga. Known as Normal Hall, it was listed on the National Register of Historic Places in 1996.

The town of Ladoga lays claim to the Chicago World’s Fair Ferris Wheel. Designed by Pittsburgh, Pennsylvania, bridge-builder George Washington Gale Ferris Jr., Luther V. Rice of Ladoga unquestionably to construct it. After the Chicago World’s Fair it was placed in Ferris Wheel Park for a while, then moved to St. Louis, Missouri, for its World’s Fair.