Rhestr llysenwau taleithiau a thiriogaethau'r Unol Daleithiau
- Alabama: Calon Dixie (Saesneg: Heart of Dixie), Y Dalaith Gotwm (Cotton State)
- Alaska: Y Goror Olaf (The Last Frontier)
- Arizona: Talaith y Ceunant Mawr (Grand Canyon State)
- Arkansas: Y Dalaith Naturiol (Natural State), Talaith yr Arth (Bear State)
- Califfornia: Y Dalaith Euraid (Golden State)
- Colorado: Talaith y Canmlwyddiant (Centennial State)
- Connecticut: Talaith y Cyfansoddiad (Constitution State), Y Dalaith Nytmeg (Nutmeg State)
- De Carolina: Talaith y Fresychwydden (Palmetto State)
- De Dakota: Talaith Mynydd Rushmore (Mount Rushmore State)
- Delaware: Talaith yr Iâr Las (Blue Hen State), y Dalaith Ddiemwnt (Diamond State)
- Efrog Newydd: Y Dalaith Ymerodrol (Empire State)
- Fflorida: Talaith yr Heulwen (Sunshine State)
- Georgia: Talaith yr Eirinen Wlanog (Peach State), Talaith Ymerodorol y De (Empire State of the South)
- Gogledd Carolina: Y Dalaith Tar Heel (Tar Heel State), Y Dalaith Dyrpant (Turpentine State)
- Gogledd Dakota: Talaith yr Ardd Heddwch (Peace Garden State)
- Gorllewin Virginia: Talaith y Mynydd (Mountain State)
- Hawaii: Y Dalaith Aloha (Aloha State)
- Idaho: Y Dalaith Lain neu'r Dalaith Dlws (Gem State)
- Illinois: Y Dalaith Baith (Prairie State), Gwlad Lincoln (Land of Lincoln)
- Indiana: Y Dalaith Hoosier (Hoosier State)
- Iowa: Y Dalaith Hawkeye (Hawkeye State)
- Kansas: Talaith Blodyn yr Haul (Sunflower State)
- Kentucky: Talaith y Glaswellt Glas (Bluegrass State)
- Louisiana: Y Dalaith Greol (Creole State); Talaith y Pelican (Pelican State)
- Maine: Talaith y Binwydden (Pine Tree State), Vacationland
- Maryland: Y Dalaith Rydd (Free State)
- Massachusetts: Talaith y Bae (Bay State)
- Michigan: Talaith y Gewai (Wolverine State)
- Minnesota: Gwlad y Deng Mil Llyn (Land of 10,000 Lakes), Y Dalaith Fara a Menyn (Bread and Butter State)
- Mississippi: Y Dalaith Fagnolia (Magnolia State), Y Dalaith Fernant (Bayou State)
- Missouri: Y Dalaith Show-Me (Show-Me State), Y Dalaith Fwliwn (Bullion State)
- Montana: Y Dalaith Drysor (Treasure State)
- Nebraska: Talaith y Cibynnwr Ŷd (Cornhusker State)
- Nevada: Y Dalaith Arian (Silver State), Talaith y Llwyn Chwerwlys (Sagebrush State)
- New Hampshire: Y Dalaith Wenithfaen (Granite State)
- New Jersey: Talaith yr Ardd (Garden State)
- New Mexico: Gwlad y Swyn (Land of Enchantment)
- Oklahoma: Y Dalaith Sooner (Sooner State), America Frodorol (Native America)
- Ohio: Talaith Llygad y Bwch (Buckeye State)
- Oregon: Talaith yr Afanc (Beaver State)
- Pennsylvania: Talaith y Maen Clo (Keystone State)
- Rhode Island: Talaith y Cefnfor (Ocean State), Little Rhody
- Tennessee: Y Dalaith Wirfoddol (Volunteer State)
- Texas: Talaith yr Un Seren (Lone Star State)
- Utah: Talaith y Cwch Gwenyn (Beehive State), Y Dalaith Formon (Mormon State)
- Vermont: Talaith y Mynyddoedd Gwyrddion (Green Mountain State)
- Virginia: Yr Hen Ddominiwn (Old Dominion), Y Fam Dalaith (Mother of States)
- Washington: Y Dalaith Fytholwyrdd (Evergreen State)
- Wisconsin: Talaith y Broch (Badger State)
- Wyoming: Y Dalaith Gydradd (Equality State)