Oak Orchard is an unincorporated community located in the town of Pensaukee, Oconto County, Wisconsin, United States.

Cattaraugus, Buffalo, Tonawanda, and Oak Orchard creeks are the most important streams in this division.

Oak Orchard and other creeks flowing into Lake Ontario descend from the interior in a series of rapids, affording a large amount of waterpower.

Oak Orchard may refer to the following places in the United States:

The unincorporated communities of Brookside, Oak Orchard, and Pensaukee are located in the town.

Oak Orchard is part of the Seaford, Delaware Micropolitan Statistical Area.

The manner in which they cut down the trees on their land gave rise to the phrase "Oak Orchard," which has current usage in the area.

Within the Oak Orchard Swamp other activities, such as hunting and trapping can be done by permit.

By 1925, the road was proposed as a state highway north of Milton and from Oak Orchard to the present-day north end of the DE 24 concurrency.

DE 5 was assigned to its current alignment by 1938, running between Oak Orchard and DE 14 (now DE 1) north of Milton.