Marseilles is a village in Wyandot County, Ohio, United States, located at the western edge of the Killdeer Plains Wildlife Area.

[4] On March 5, 1967, Lake Central Flight 527 en route from Columbus to Toledo, crashed in a field near the Wyandot/Hardin County line near the Village of Marseilles.

According to the United States Census Bureau, the village has a total area of 0.10 square miles (0.26 km2), all land.

[5] State Route 67 runs through Marseilles, in which it serves as the main street.

26.7% of all households were made up of individuals, and 8.9% had someone living alone who was 65 years of age or older.

There were 6.5% of families and 5.9% of the population living below the poverty line, including 4.9% of under eighteens and 25.0% of those over 64.