U
- United States of America
- States of the United States of America
- United States census statistical areas of Oklahoma
- United States congressional delegations from Oklahoma
- United States congressional districts in Oklahoma
- United States Court of Appeals for the Tenth Circuit
- United States District Court for the Eastern District of Oklahoma
- United States District Court for the Northern District of Oklahoma
- United States District Court for the Western District of Oklahoma
- United States Representatives from Oklahoma
- United States Senators from Oklahoma
- Universities and colleges in Oklahoma
- commons:Category:Universities and colleges in Oklahoma
- US-OK – ISO 3166-2:US region code for the State of Oklahoma
Read more about this topic: Index Of Oklahoma-related Articles