Ohio is nicknamed "The Buckeye State," a name derived from the prevalence of buckeye trees in the region and their cultural significance.

The nickname "The Buckeye State" comes from the Ohio buckeye tree (Aesculus glabra), which is native to the state. The tree produces shiny, dark brown nuts that resemble a deer’s eye, giving it the name "buckeye." The nickname gained popularity in the 19th century and has since become a symbol of Ohio pride. Ohioans are often referred to as "Buckeyes," and the state’s flagship university, The Ohio State University, proudly uses the buckeye as its mascot. The name reflects Ohio’s natural heritage and cultural identity.