Onekama (/oʊˈnɛkəmə/ oh-NEK-ə-mə) is a village in Manistee County in the U.S. state of Michigan.

[2] The village is located on the northeast shore of Portage Lake and is surrounded by Onekama Township.

The town's name is derived from Ona-ga-maa, an Anishinaabe word which means "singing water".

When this action dried out Portage Creek on May 14, 1871, the settlement, which had only the week before been designated as "Onekama" with a post office under that name, moved to the previously submerged land at the northeastern shore of the lake near an earlier settlement called "Brookfield".

The village was incorporated in 1891 and included the earlier settlement known as Brookfield, creating a long narrow village about 1.5 miles (2.4 km) long, with the business section on the flat, former lake bottom and residences on the higher land.

According to the United States Census Bureau, the village of Onekama has a total area of 0.59 square miles (1.53 km2), all land.

41.0% of all households were made up of individuals, and 20.4% had someone living alone who was 65 years of age or older.

34.3% of all households were made up of individuals, and 17.2% had someone living alone who was 65 years of age or older.