Anna is a village in Shelby County, Ohio, United States. The population was 1,567 at the 2010 census.
The prehistoric Teays River ran through modern-day Anna about 2 million years ago. The Teays river deposited loose sediment on the Greenville fault line which created a major earthquake center.
According to the Native Americans, Tecumseh tried to start his alliances in what is now Anna. Most native Shawnee and Miami tribes refused the offer. He supposedly put a curse on the land. The curse stated that the land would be ever plagued with the trembling of the earth.
The first white settlement at Anna was made in the 1830s. Anna was platted in 1868, and named for Anna Thirkield. The village was incorporated in 1877.
On March 9, 1937, the largest recorded earthquake in Ohio occurred where the high school and middle school now stand. It was measured at 5.4 on the Richter magnitude scale, while damage was at intensity VIII according to the Mercalli intensity scale.