Montezuma is a village in Mercer County, Ohio, United States.

As of the census[10] of 2010, there were 165 people, 74 households, and 48 families living in the village.

There were 89 housing units at an average density of 741.7 per square mile (286.4/km2).

28.4% of all households were made up of individuals, and 6.8% had someone living alone who was 65 years of age or older.

There were 80 housing units at an average density of 695.6 per square mile (268.6/km2).

23.9% of all households were made up of individuals, and 12.7% had someone living alone who was 65 years of age or older.

About 2.6% of families and 10.3% of the population were below the poverty line, including 10.0% of those under the age of eighteen and none of those 65 or over.