A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - XYZ
This is a list of rivers in the United States that have names starting with the letter O. For the main page, which includes links to listings by state, see List of rivers in the United States.
Oa - Oc
Oak Grove Fork Clackamas River - Oregon
Oak Orchard River - New York
Oatka Creek - New York
Obed River - Tennessee
Obey River - Tennessee
Obion River - Tennessee
Occoquan River - Virginia
Ocheyedan River - Iowa, Minnesota
Ochlockonee River - Georgia, Florida
Ocklawaha River - Florida
Ocmulgee River - Georgia
Ocoee River - Tennessee
Oconee River - Georgia
Oconomowoc River - Wisconsin
Oconto River - Wisconsin
Octoraro Creek - Pennsylvania, Maryland
Og - Om
Ogden River - Utah
Ogeechee River - Georgia
Ohio Brush Creek - Ohio
Ohio River - Pennsylvania, Ohio, West Virginia, Kentucky, Indiana, Illinois
Ohoopee River - Georgia
Oil Creek - New York, Pennsylvania
Okanogan River - Washington
Old River - Louisiana
Old River - New Hampshire
Olentangy River - Ohio
Oleta River - Florida
Ompompanoosuc River - Vermont
On - Os
One Hundred and Two River - Iowa, Missouri
Oneida River - New York
Onion River - Wisconsin (tributary of Lake Superior) Onion River - Wisconsin (tributary of Sheboygan River) Ontonagon River - Michigan Oolenoy River - South Carolina Oostanaula River - Georgia Opequon Creek - Virginia, West Virginia Oriskany Creek - New York Osage River - Missouri Ossipee River - New Hampshire, Maine Oswegatchie River - New York Oswego River - New Jersey Oswego River - New York
Ot - Oy
Otay River - California
Otselic River - New York
Ottauquechee River - Vermont
Ottawa River - Ohio (tributary of Auglaize River) Ottawa River - Ohio, Michigan (tributary of Lake Erie) Otter Creek - Vermont Otter Tail River - Minnesota Ouachita River - Arkansas, Louisiana Ounce River - Wisconsin Owens River - California Owyhee River - Nevada, Idaho, Oregon Oyster River - Connecticut Oyster River - New Hampshire Oyster Pond River - Massachusetts