--- 
:cy: 
  :territories: 
    :ac: "Ynys Ascension"
    :ad: Andorra
    :ae: "Emiradau Arabaidd Unedig"
    :af: Afghanistan
    :ag: "Antigua a Barbuda"
    :ai: Anguilla
    :al: Albania
    :am: Armenia
    :ao: Angola
    :aq: Antarctica
    :ar: "Yr Ariannin"
    :as: "Samoa America"
    :at: Awstria
    :au: Awstralia
    :aw: Aruba
    :ax: "Ynysoedd Åland"
    :az: Azerbaijan
    :ba: "Bosnia a Hercegovina"
    :bb: Barbados
    :bd: Bangladesh
    :be: "Gwlad Belg"
    :bf: "Burkina Faso"
    :bg: Bwlgaria
    :bh: Bahrain
    :bi: Burundi
    :bj: Benin
    :bl: "Saint Barthélemy"
    :bm: Bermuda
    :bn: Brunei
    :bo: Bolifia
    :bq: "Antilles yr Iseldiroedd"
    :br: Brasil
    :bs: "Y Bahamas"
    :bt: Bhutan
    :bv: "Ynys Bouvet"
    :bw: Botswana
    :by: Belarws
    :bz: Belize
    :ca: Canada
    :cc: "Ynysoedd Cocos (Keeling)"
    :cd: "y Congo (G.Dd.C.)"
    :cf: "Gweriniaeth Canolbarth Affrica"
    :cg: "Y Congo (Gweriniaeth)"
    :ch: "Y Swistir"
    :ci: "Arfordir Ifori"
    :ck: "Ynysoedd Cook"
    :cl: Chile
    :cm: Camerŵn
    :cn: Tsieina
    :co: Colombia
    :cp: "Ynys Clipperton"
    :cr: "Costa Rica"
    :cu: Ciwba
    :cv: "Cabo Verde"
    :cw: Curaçao
    :cx: "Ynys y Nadolig"
    :cy: Cyprus
    :cz: "Gweriniaeth Tsiec"
    :de: "Yr Almaen"
    :dg: "Diego Garcia"
    :dj: Djibouti
    :dk: Denmarc
    :dm: Dominica
    :do: "Gweriniaeth Dominica"
    :dz: Algeria
    :ea: "Ceuta a Melilla"
    :ec: Ecuador
    :ee: Estonia
    :eg: "Yr Aifft"
    :eh: "Gorllewin Sahara"
    :er: Eritrea
    :es: Sbaen
    :et: Ethiopia
    :eu: "Yr Undeb Ewropeaidd"
    :fi: "Y Ffindir"
    :fj: Fiji
    :fk: "Ynysoedd y Falkland (Ynysoedd y Malfinas)"
    :fm: Micronesia
    :fo: "Ynysoedd Ffaro"
    :fr: Ffrainc
    :ga: Gabon
    :gb: DU
    :gd: Grenada
    :ge: Georgia
    :gf: "Guyane Ffrengig"
    :gg: "Ynys y Garn"
    :gh: Ghana
    :gi: Gibraltar
    :gl: "Yr Ynys Las"
    :gm: Gambia
    :gn: Guinée
    :gp: Guadeloupe
    :gq: "Guinea Gyhydeddol"
    :gr: "Gwlad Groeg"
    :gs: "De Georgia ac Ynysoedd Sandwich y De"
    :gt: Guatemala
    :gu: Guam
    :gw: Guiné-Bissau
    :gy: Guyana
    :hk: "Hong Kong"
    :hm: "Ynys Heard ac Ynysoedd McDonald"
    :hn: Honduras
    :hr: Croatia
    :ht: Haiti
    :hu: Hwngari
    :ic: "Yr Ynysoedd Dedwydd"
    :id: Indonesia
    :ie: Iwerddon
    :il: Israel
    :im: "Ynys Manaw"
    :in: India
    :io: "Tiriogaeth Brydeinig Cefnfor India"
    :iq: Irac
    :ir: Iran
    :is: "Gwlad yr Iâ"
    :it: "Yr Eidal"
    :je: Jersey
    :jm: Jamaica
    :jo: "Gwlad Iorddonen"
    :jp: Japan
    :ke: Kenya
    :kg: Kyrgyzstan
    :kh: Cambodia
    :ki: Kiribati
    :km: Comoros
    :kn: "Saint Kitts a Nevis"
    :kp: "Gogledd Korea"
    :kr: "De Korea"
    :kw: Kuwait
    :ky: "Ynysoedd Cayman"
    :kz: Kazakstan
    :la: Laos
    :lb: Libanus
    :lc: "Saint Lucia"
    :li: Liechtenstein
    :lk: "Sri Lanka"
    :lr: Liberia
    :ls: Lesotho
    :lt: Lithuania
    :lu: Lwcsembwrg
    :lv: Latfia
    :ly: Libya
    :ma: Moroco
    :mc: Monaco
    :md: Moldofa
    :me: Montenegro
    :mf: "Saint Martin"
    :mg: Madagascar
    :mh: "Ynysoedd Marshall"
    :mk: "Macedonia (CWIM)"
    :ml: Mali
    :mm: "Myanmar (Burma)"
    :mn: Mongolia
    :mo: Macau
    :mp: "Ynysoedd Gogledd Mariana"
    :mq: Martinique
    :mr: Mauritania
    :ms: Montserrat
    :mt: Malta
    :mu: Mauritius
    :mv: "Y Maldives"
    :mw: Malawi
    :mx: Mecsico
    :my: Malaysia
    :mz: Mozambique
    :na: Namibia
    :nc: "Caledonia Newydd"
    :ne: Niger
    :nf: "Ynys Norfolk"
    :ng: Nigeria
    :ni: Nicaragua
    :nl: "Yr Iseldiroedd"
    ? !ruby/symbol "no"
    : Norwy
    :np: Nepal
    :nr: Nauru
    :nu: Niue
    :nz: "Seland Newydd"
    :om: Oman
    :pa: Panama
    :pe: Periw
    :pf: "Polynesia Ffrengig"
    :pg: "Papua Guinea Newydd"
    :ph: "Y Philipinau"
    :pk: Pakistan
    :pl: "Gwlad Pwyl"
    :pm: Saint-Pierre-et-Miquelon
    :pn: "Ynysoedd Pitcairn"
    :pr: "Puerto Rico"
    :ps: Palesteina
    :pt: Portiwgal
    :pw: Palau
    :py: Paraguay
    :qa: Qatar
    :qo: "Oceania Bellennig"
    :re: Réunion
    :ro: Rwmania
    :rs: Serbia
    :ru: Rwsia
    :rw: Rwanda
    :sa: "Saudi Arabia"
    :sb: "Ynysoedd Solomon"
    :sc: Seychelles
    :sd: Swdan
    :se: Sweden
    :sg: Singapore
    :sh: "Saint Helena"
    :si: Slofenia
    :sj: "Svalbard a Jan Mayen"
    :sk: Slofacia
    :sl: "Sierra Leone"
    :sm: "San Marino"
    :sn: Senegal
    :so: Somalia
    :sr: Suriname
    :ss: "De Swdan"
    :st: "São Tomé a Príncipe"
    :sv: "El Salvador"
    :sx: "Sint Maarten"
    :sy: Syria
    :sz: "Gwlad Swazi"
    :ta: "Tristan da Cunha"
    :tc: "Ynysoedd Turks a Caicos"
    :td: Tchad
    :tf: "Tiroedd Deheuol ac Antarctig Ffrainc"
    :tg: Togo
    :th: "Gwlad Thai"
    :tj: Tajikistan
    :tk: Tokelau
    :tl: "Dwyrain Timor"
    :tm: Turkmenistan
    :tn: Tunisia
    :to: Tonga
    :tr: Twrci
    :tt: "Trinidad a Tobago"
    :tv: Tuvalu
    :tw: Taiwan
    :tz: Tanzania
    :ua: Wcráin
    :ug: Uganda
    :um: "Ynysoedd Pellennig UDA"
    :us: UDA
    :uy: Uruguay
    :uz: Uzbekistan
    :va: "Y Fatican"
    :vc: "Saint Vincent a’r Grenadines"
    :ve: Venezuela
    :vg: "Ynysoedd Gwyryf Prydain"
    :vi: "Ynysoedd Gwyryf yr Unol Daleithiau"
    :vn: Fietnam
    :vu: Vanuatu
    :wf: "Wallis a Futuna"
    :ws: Samoa
    :xk: Kosovo
    :ye: Yemen
    :yt: Mayotte
    :za: "De Affrica"
    :zm: Zambia
    :zw: Zimbabwe
    :zz: "Rhanbarth Anhysbys"