Wonsevu is an unincorporated community in southwest Chase County, Kansas, United States.

For many millennia, the Great Plains of North America was inhabited by nomadic Native Americans.

In 1803, most of the land for modern day Kansas was acquired by the United States from France as part of the 828,000 square mile Louisiana Purchase for 2.83 cents per acre.

In 1859, Chase County was established within the Kansas Territory, which included the land for modern day Wonsevu.

The climate in this area is characterized by hot, humid summers and generally mild to cool winters.