Lima ( /ˈlaɪmə/) is a city in and the county seat of Allen County, Ohio, United States. The municipality is located in northwestern Ohio along Interstate 75 approximately 72 miles (116 km) north of Dayton and 78 miles (126 km) south-southwest of Toledo.

As of the 2010 census, the city had a population of 38,771. It is the principal city of and is included in the Lima, Ohio Metropolitan Statistical Area, which is included in the Lima-Van Wert–Wapakoneta, Ohio Combined Statistical Area. Lima was founded in 1831.

‎The Lima Army Tank Plant, built in 1941, is the sole producer of the M1 Abrams.

In the years after the American Revolution, the Shawnee were the most prominent residents of west central Ohio, growing in numbers and permanency after the 1794 Treaty of Greenville. By 1817, the United States had created the Hog Creek Reservation for the local Shawnee, covering portions of what would become Allen and Auglaize counties, and including part of present-day Lima.

The creation of the Shawnee reservation freed other lands in the area for settlement, and in February 1820, the Ohio legislature formally established Allen County. In 1831 the Shawnee were forced to surrender all their land in the area to the United States and relocated to Kansas, opening all of Allen County to settlement. The Ohio legislature mandated that a county seat be established. "Lima" was the result.

Lima is the capital and the largest city of Peru. It is located in the valleys of the Chillón, Rímac and Lurín rivers, in the central part of the country, on a desert coast overlooking the Pacific Ocean. Together with the seaport of Callao, it forms a contiguous urban area known as the Lima Metropolitan Area. With a population approaching 9 million, Lima is the fifth largest city in Latin America, behind Mexico City, São Paulo, Buenos Aires and Rio de Janeiro. Lima is home to one of the largest financial hubs in Latin America. It has been defined as a beta world city by GaWC international ranking.

Lima was founded by Spanish conquistador Francisco Pizarro on January 18, 1535, as la Ciudad de los Reyes, or "the City of Kings". It became the capital and most important city in the Spanish Viceroyalty of Peru. Following the Peruvian War of Independence, it became the capital of the Republic of Peru. Today, around one-third of the Peruvian population lives in the metropolitan area.

Lima is home to one of the oldest higher learning institutions in the New World. The National University of San Marcos, founded on May 12, 1551 during Spanish colonial regime, is the oldest continuously functioning university in the Americas.

Ohio (ⁱ/oʊˈhaɪ.oʊ/) is a state in the Midwestern United States. Ohio is the 34th most extensive, the 7th most populous, and the 10th most densely populated of the 50 United States. The state's capital and largest city is Columbus.

The name "Ohio" originated from Iroquois word ohi-yo’, meaning "great river". The state, originally partitioned from the Northwest Territory, was admitted to the Union as the 17th state (and the first under the Northwest Ordinance) on March 1, 1803. Although there are conflicting narratives regarding the origin of the nickname, Ohio is historically known as the "Buckeye State" (relating to the Ohio buckeye tree) and Ohioans are also known as "Buckeyes".

The government of Ohio is composed of the executive branch, led by the Governor; the legislative branch, which comprises the Ohio General Assembly; and the judicial branch, which is led by the Supreme Court. Currently, Ohio occupies 18 seats in the United States House of Representatives. Ohio is known for its status as both a swing state and a bellwether in national elections.