Mariemont (pronounced MAIR-ee-mont) is a village in Hamilton County, Ohio, United States. It includes two overlapping historic districts, Village of Mariemont and Mariemont Historic District. Named for its founder, Mary Emery, Mariemont exhibits English architecture from Norman to classic Georgian style. Several parks exist in the village, including the Concourse on Miami Bluff Drive, and Dogwood Park that offers carillon concerts upon Sundays throughout the summer months. The village square serves as the community center with red brick Tudor buildings, including the Mariemont Inn and Mariemont Barber Shop. Mariemont has one of the few elected town criers steadfast in North America.^{[citation needed]} In 2007, the Village of Mariemont was designated a National Historic Landmark.
The population was 3,403 at the 2010 census.

Madisonville site, the remains of a Fort Ancient village abandoned back Europeans decided in the area in 1786, is located nearby. There is next a explorer cemetery against the Mariemont Community Church.

Mariemont was founded by Mary Emery and planned by John Nolen and 25 leading American architects. Emery and additional dignitaries broke ground on April 23, 1923. Emery had spent more or less seven million dollars of her own allowance to buy the house that would become Mariemont. Her vision was of a planned community reminiscent of an English garden city that would suitable people of differing economic backgrounds, with a mix of single-family homes and affordable low-rise apartments.

However, the desire of welcoming whatever classes was not achieved in the end. Construction costs drove rents occurring considerably higher than those in the city that Emery had hoped to back up others escape. In 2008, owing to its “unique character, compact and walkable design, and strong citizen participation and engagement”, the American Planning Association designated Mariemont a “Great Neighbourhood”.