Ohio is a Midwestern state in the Great Lakes region of the United States. The state takes its name from the Ohio River, whose name in turn originated from the Seneca word ohiːyo', meaning "good river", "great river" or "large creek". The Ohio River forms its southern border, though nearly all of the river itself belongs to Kentucky and West Virginia.
Significant rivers within the state include the Cuyahoga River, Great Miami River, Maumee River, Muskingum River, and Scioto River. The rivers in the northern part of the state drain into the northern Atlantic Ocean via Lake Erie and the St. Lawrence River, and the rivers in the southern part of the state drain into the Gulf of Mexico via the Ohio River and then the Mississippi.
The worst weather disaster in Ohio history occurred along the Great Miami River in 1913. Known as the Great Dayton Flood, the entire Miami River watershed flooded, including the downtown business district of Dayton. As a result, the Miami Conservancy District was created as the first major flood plain engineering project in Ohio and the United States.
Alphabetically Alum Creek Apple Creek Ashtabula River Auglaize River Beaver Creek (Lorain County, Ohio) Beaver Creek (Raccoon Creek tributary) Big Creek Big Darby Creek Big Walnut Creek Black Fork Mohican River Black River Blackhoof Creek Blacklick Creek Blanchard River Brandywine Creek (Broken Sword Creek tributary) Brandywine Creek (Cuyahoga River tributary) Brandywine Creek (Miami River tributary) Brandywine Creek (Tuscarawas River tributary) Brewster Creek Broken Sword Creek Buck Creek (feeds Clarence J. Brown Reservoir) Butler Run Captina Creek Chagrin River Chippewa Creek (Cuyahoga River tributary) Chippewa Creek (Tuscarawas River tributary) Clear Creek Clear Fork Mohican River Conneaut Creek Conotton Creek Cuyahoga River Duck Creek Duncan Run Euclid Creek Federal Creek Flatrock Creek Grand River Great Miami River (Miami River tributary) Green Creek Greenville Creek Harkers Run Hemlock Creek Hocking River Hopsons Creek Huff Run Huron River Killbuck Creek Kingsbury Run Kinnikinnick Creek Kokosing River Lake Fork Mohican River Leading Creek Leatherwood Creek (Tawana Creek tributary) Leatherwood Creek (Wills Creek tributary) Licking River Little Auglaize River Little Beaver Creek Little Beaver Creek (Lorain County, Ohio) Little Cuyahoga River Little Darby Creek Little Hocking River Little Miami River Little Muskingum River Little Ottawa River Little Sandusky River Little Scioto River (Ohio River tributary) Little Scioto River (Scioto River tributary) Little Wakatomika Creek Loramie Creek Mad River Mahoning River Margaret Creek Maumee River Mill Creek Mississinewa River Mohican River Monday Creek Moxahala Creek Muskingum River Nimishillen Creek Ohio Brush Creek Ohio River Olentangy River Ottawa River (Auglaize River tributary) Ottawa River (Lake Erie) (Toledo) Pigeye Creek Paint Creek Pee Pee Creek Portage River Raccoon Creek Rattlesnake Creek Rocky River St. Joseph River St. Marys River Sandusky River Sandy Creek Schocalog Run Scioto River Shade River Shenango River Slabcamp Run Slate Run Solomon Run Still Fork Stillwater River Styx River Sugar Creek (Ottawa River tributary) Sugar Creek (Tuscarawas River tributary) Sunday Creek Symmes Creek Sycamore Creek
Tiffin River Tinkers Creek Toussaint River (Ohio) Turtle Creek Tuscarawas River Vermilion River Wabash River Wakatomika Creek Walhonding River Wheeling Creek Whitewater River Wills Creek Wolf Creek (Great Miami River tributary) Wolf Creek (Muskingum River tributary)
By tributary Lake Erie Bear Creek Little Bear Creek Halfway Creek Shantee Creek Silver Creek
Ottawa River Ottawa River Sibley Creek Tenmile Creek North Branch Tenmile Creek Prairie Ditch
Maumee River Maumee River Duck Creek Swan Creek Wolf Creek Cairl Creek Blue Creek Mosquito Creek Harris Ditch Gail Run Ai Creek Delaware Creek Grassy Creek Tontogany Creek Kettle Run Beaver Creek Little Beaver Creek Cutoff Ditch Brush Creek Yellow Creek West Creek Little Yellow Creek East Beaver Creek West Beaver Creek Big Creek Lick Creek Bad Creek South Branch Bad Creek Dry Creek School Creek Turkeyfoot Creek Lost Creek Brush Creek West Creek Mess Ditch Gustwiller Ditch Brickman Ditch North Turkeyfoot Creek Konzen Ditch Obernouse Creek Van Hyning Creek Garrett Creek Benien Creek Brubaker Creek Barnes Creek Wade Creek Huston Creek Preston Run Auglaize River Powell Creek Wagner Run North Powell Creek Hogback Run South Powell Creek Threemile Creek Jackson Ditch Beetree Creek Fivemile Creek Eagle Creek Sixmile Creek Bull Creek Little Flatrock Creek Flatrock Creek Wildcat Creek Blue Creek Barcer Run Webster Ditch Cunningham Creek Buchanan Ditch Upper Prairie Creek Parker Ditch Sponseller Ditch Little Auglaize River Prairie Creek West Branch Prairie Creek Hog Run Hoaglin Creek Monkey Run Dog Run Hagerman Creek Dry Creek Middle Branch Little Auglaize River Maddox Creek Balyeat Ditch Sheets Ditch Town Creek Roller Creek Dog Creek Emmit Bell Ditch Spice Run Bandehoff Ditch Dry Run Hermann Ditch Benson Ditch Wolf Ditch Long Prairie Creek Kyle Prairie Ditch Greens Ditch Frisinger Ditch Prairie Creek Blanchard River Ottawa River Little Ottawa River Hog Creek Tiffin River Lick Creek St. Joseph River St. Marys River Black Creek Clear Creek
Otter Creek Wolf Creek Cedar Creek Dry Creek Little Cedar Creek Crane Creek Ayers Creek Little Crane Creek Henry Creek Two Root Creek Turtle Creek North Branch Turtle Creek South Branch Turtle Creek
Toussaint River (Ohio) Toussaint River (Ohio) Rusha Creek Toussaint Creek Packer Creek
Portage River (Ohio) Portage River Little Portage River Cottonwood Swale Ninemile Creek Indian Creek Green Bayou Bayou Creek Lacarpe Creek Wolf Creek Sugar Creek Victoria Creek Middle Branch Portage River North Branch Portage River Yankey Creek Cuckle Creek South Branch Portage River East Branch Portage River South Branch East Branch Portage River Bull Creek Rocky Ford Needles Creek Rader Creek
Sandusky River Sandusky River Green Creek Yellow Slough Flag Run Beaver Creek Owl Creek Westerhouse Ditch Albreight Ditch Noel Ditch Emerson Creek Royer Ditch Bark Creek Muskellunge Creek Indian Creek Wolf Creek East Branch Wolf Creek Snuff Creek East Fork East Branch Wolf Creek Middle Fork East Branch Wolf Creek Sugar Creek Spicer Creek Morrison Creek Willow Creek Rock Creek East Branch Rock Creek Armstrong and Beighly Ditch Carpenter Ditch Gibson Creek Bells Run Honey Creek Buckeye Creek Silver Creek Eicholtz Ditch Kagy Ditch Bollinger Ditch Hedden Ditch Hooper Ditch Schaaf Ditch Brokenknife Creek Mile Run Sycamore Creek Greasy Run Taylor Run Thorn Run Tymochtee Creek Spring Run Poverty Run No. 32 Ditch Little Tymochtee Creek Hart Ditch Browns Run Veith Ditch Lick Run Baughman Run Blake Ditch Perkins Run Oak Run Sugar Run Warpole Creek Saint James Run Little Tymochtee Creek Revhorn Run Pawpaw Run PawPaw Run Carroll Ditch Enoch Creek Prairie Run Thompson Ditch Layton Ditch Sugar Run Negro Run Spring Branch Kiser Run Porcupine Creek Cranberry Run Rock Run Little Sandusky River Honey Run Broken Sword Creek Indian Run Brandywine Creek (Broken Sword Creek tributary) Red Run Grass Run Gray Eye Run Loss Creek Paramour Creek Allen Run South Creek Racoon Creek Pickerel Creek Strong Creek Fuller Creek Little Pickerel Creek Cold Creek Mills Creek Pipe Creek Plum Brook Sawmill Creek
Huron River Huron River Mud Brook East Branch Huron River Cole Creek Norwalk Creek West Branch Huron River Seymour Creek Megginson Creek Frink Run Haas Ditch Schoeffel Ditch Slate Run Mud Run Mud Run Shriner Ditch Marsh Run Old Woman Creek Cranberry Creek Chappel Creek Sugar Creek Darby Creek Sherod Creek
Vermilion River Vermilion River East Fork Vermilion River East Branch Vermilion River Indian Creek Southwest Branch Vermilion River Buck Creek Clear Creek Brownhelm Creek Quarry Creek Beaver Creek Martin Run
Black River Black River Ziegman Ditch French Creek Jungbluth Ditch Walker Ditch Kline Ditch Avins Ditch Klingsburn Ditch Slater Ditch Ridgeway Ditch East Branch Black River Willow Creek Fortune Ditch Salt Creek Crow Creek Coon Creek East Fork East Branch Black River West Fork East Branch Black River Clear Creek West Branch Black River Straw Ditch Schroeder Ditch Dant Ditch Elk Creek Kelner Ditch Squires Ditch Plum Creek Wellington Creek Ponderosa Pines Lake Findley Lake Charlemont Creek Buck Creek Schumaker Ditch Powdermaker Ditch Heider Ditch Gable Ditch Porter Creek Cahoon Creek Sperry Creek Tuttle Creek Willow Creek
Rocky River Rocky River West Channel Rocky River Abram Creek (Rocky River, Lake Erie) East Branch Rocky River Baldwin Creek Healey Creek Big Brook Willow Brook West Branch Rocky River Plum Creek (Rocky River, Lake Erie) Baker Creek (Rocky River, Lake Erie) Blodgett Creek Cossett Creek Mallet Creek North Branch West Branch Rocky River Plum Creek (Rocky River, Lake Erie) Remson Creek Granger Ditch South Branch Rocky River
Cuyahoga River Cuyahoga River Old River Kingsbury Run Morgan Run Burk Branch Big Creek Countrymans Creek West Creek Mill Creek
Tinkers Creek Tinkers Creek Beaver Meadow Run Hawthorne Creek Hemlock Creek Neptune Lake Pond Brook Wood Creek Chippewa Creek
Brandywine Creek Brandywine Creek (Cuyahoga River tributary) Indian Creek Stanford Run Grannys Run Slipper Run Boston Run Haskell Run Ritchie Run Salt Run Dickerson Run Langes Run Robinson Run Furnace Run Riding Run Yellow Creek North Fork Yellow Creek Woodward Creek Sand Run Mud Brook Woodward Creek Old Mill Pond Powers Brook Little Cuyahoga River Springfield Lake Outlet Wingfoot Lake Outlet Fish Creek Plum Creek Breakneck Creek (Cuyahoga River tributary) Potter Creek Black Brook Sawyer Brook Bridge Creek West Branch Cuyahoga River Butternut Creek Hopsons Creek Tare Creek
Doan Brook Doan Brook Wade Lagoon Fairmont Reservoir Baldwin Reservoir Lower Shaker Lake Upper Shaker Lake Blue Rock Brook Walnut Creek Ninemile Creek
Euclid Creek Euclid Creek East Branch Claribel Creek Stevenson Brook Verbsky Creek Redstone Run
Chagrin River Chagrin River East Branch Chagrin River Griswold Creek Willey Creek Aurora Branch McFarland Creek Silver Creek Beaver Creek
Marsh Creek Marsh Creek Heisley Creek
Grand River Grand River Black Brook Caroline Creek Pebble Branch Red Creek Big Creek Kellogg Creek Ellison Creek Gordon Creek East Creek Aylworth Creek Jenks Creek Cutts Creek Paine Creek Bates Creek Phelps Creek Talcott Creek Griswold Creek Mill Creek Coffee Creek Center Creek Mill Creek Griggs Creek Askme Run Peters Creek Bronson Creek Trumbull Creek Spring Creek Three Brothers Creek Badger Run Rock Creek Plum Creek Sugar Creek Whetstone Creek Lebanon Creek Shanty Creek Crooked Creek Mud Creek Hoskins Creek Indian Creek Montville Ditch Phelps Creek Petersen Creek North Branch Phelps Creek South Branch Phelps Creek Mill Creek Garden Creek Swine Creek Grapevine Creek Andrews Creek Plum Creek Coffee Creek Baughman Creek Center Creek Mud Run Dead Branch McKinley Creek Big Creek Wheeler Creek Cowles Creek Indian Creek Red Brook
Ashtabula River Ashtabula River Fields Brook Strong Brook Hubbard Run Ashtabula Creek West Branch Ashtabula River East Branch Ashtabula River
Conneaut Creek Conneaut Creek West Branch Conneaut Creek East Branch Conneaut Creek Middle Branch Conneaut Creek Stone Run Fish Creek Turkey Creek
Ohio River Wabash River Wabash River Mississinewa River Jordan Ditch Grays Branch Hickory Branch Scherman Ditch Beaver Creek Big Run Brush Run Little Beaver Creek Little Bear Creek Buck Run Herden Creek Coldwater Creek Burntwood Creek Beaver Creek Darlinghaus Ditch Crab Branch Toti Creek Stony Creek Twomile Creek Threemile Creek Vandenbush Ditch Ward Ditch Bear Creek
Great Miami River Great Miami River Doublelick Run Whitewater River Sand Run Dry Fork Lee Creek Howard Creek Sater Run Phillips Creek Jamison Creek East Fork Whitewater River Elkhorn Creek Mud Creek Horn Ditch Rocky Fork Little Creek Brinley Fork Jocqueway Fork Dry Run