Oakland Post Office, the post office serving Oakland, Nebraska.

Oakland Public Library, the public library serving Oakland, Nebraska.

Oak Prairie Nursery is a plant nursery in Lincoln, Nebraska.

Used car dealership on North 70th Street in Lincoln.

Oak Valley Elementary School is a public elementary school in Omaha Public Schools.

In western Knox County, Nebraska, between the now ghost towns of Walnut and Venus, near the Grimton Cemetery, is the most impressive park of all, Oak View Park in Knox County at times attracted 10,000 to 30,000 people in a single day during the Depression era. It is the subject of a book written by Linda Wostrel, an Omaha historian.

The village office for Oak, Nebraska.

Used car dealership on NE Highway 50 in Weeping Water.

Oasis Counseling Service provides professional counseling and mental health services for individuals and families in O'Neill, Nebraska and the surrounding Holt County area.