| ad = Andorra |
| ae = U.A.E. |
| af = Afghanistan |
| ag = Antigua a Barbuda |
| ai = Anguilla |
| al = Albania |
| am = Armenia |
| an = Antilles yr Iseldiroedd |
| ao = Angola |
| aq = Antarctica |
| ar = Ariannin |
| as = Samoa Americanaidd |
| at = Awstria |
| au = Awstralia |
| aw = Aruba |
| ax = Ynysoedd Åland |
| az = Azerbaijan |
| ba = Bosnia a Herzegovina |
| 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 Darussalam |
| bo = Bolivia |
| br = Brasil |
| bs = Bahamas |
| bt = Bhutan |
| bv = Ynys Bouvet |
| bw = Botswana |
| by = Belarus |
| bz = Belize |
| ca = Canada |
| cc = Ynysoedd Cocos (Keeling) |
| cd = Congo-Kinshasa |
| cf = Gweriniaeth Affricanaidd Congo |
| cg = Congo-Brazzaville |
| ch = Y Swistir |
| ci = Arfoerdir Ifori |
| ck = Ynysoedd Cook |
| cl = Chile |
| cm = Cameroon |
| cn = Tsieina |
| co = Colombia |
| cr = Costa Rica |
| cu = Cuba |
| cv = Cape Verde |
| cx = Ynys Christmas |
| cy = Cyprus |
| cz = Gweriniaeth Tsiec |
| de = Yr Almaen |
| dj = Djibouti |
| dk = Denmarc |
| dm = Dominica |
| do = Gweriniaeth Dominica |
| dz = Algeria |
| ec = Ecuador |
| ee = Estonia |
| eg = Yr Aifft |
| eh = Gorllenwin Sahara |
| er = Eritrea |
| es = Sbaen |
| et = Ethiopia |
| fi = Ffindir |
| fj = Ffiji |
| fk = Ynysoedd Malfinas |
| fm = Micronesia |
| fo = Ynysoedd Ffaroe |
| fr = Ffrainc |
| ga = Gabon |
| gb = Y Deyrnas Unedig |
| gd = Grenada |
| ge = Georgia |
| gf = Guiana Ffrengig |
| gg = Guernsey |
| gh = Ghana |
| gi = Gibraltar |
| gl = Greenland |
| gm = Gambia |
| gn = Guinea |
| gp = Guadeloupe |
| gq = Guinea Cyhydeddol |
| gr = Groeg |
| gs = De Georgia ac Ynysoedd De Sandwich |
| gt = Guatemala |
| gu = Guam |
| gw = Guinea-Bissau |
| gy = Guyana |
| hk = Hong Kong |
| hm = Ynys Heard ac Ynys McDonald |
| hn = Honduras |
| hr = Croatia |
| ht = Haiti |
| hu = Hwngari |
| id = Indonesia |
| ie = Iwerddon |
| il = Israel |
| im = Ynys Manaw |
| in = India |
| io = Tiriogaeth Cefnfor Indiaidd Prydain |
| iq = Irac |
| ir = Iran |
| is = Ynys yr Iâ |
| it = Yr Eidal |
| je = Jersey |
| jm = Jamaica |
| jo = Yr Iorddonen |
| jp = Siapan |
| ke = Kenya |
| kg = Kyrgyzstan |
| kh = Cambodia |
| ki = Kiribati |
| km = Comoros |
| kn = Saint Kitts a Nevis |
| kp = Gogledd Corea |
| kr = De Corea |
| kw = Kuwait |
| ky = Ynysoedd Cayman |
| kz = Kazakhstan |
| la = Laos |
| lb = Libanus |
| lc = Saint Lucia |
| li = Luxembourg |
| lk = Sri Lanka |
| lr = Liberia |
| ls = Lesotho |
| lt = Lithiwania |
| lu = Liechtenstein |
| lv = Latfia |
| ly = Libya |
| ma = Morocco |
| mc = Monaco |
| md = Moldova |
| me = Montenegro |
| mf = Saint Martin |
| mg = Madagascar |
| mh = Ynysoedd Marshall |
| mk = Macedonia |
| ml = Mali |
| mm = Myanmar |
| mn = Mongolia |
| mo = Macao |
| mp = Ynysoedd Gogledd Mariana |
| mq = Martinique |
| mr = Mauritania |
| ms = Montserrat |
| mt = Malta |
| mu = Mauritius |
| mv = 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 |
| 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 = Philippines |
| pk = Pacistan |
| pl = Gwlad Pwyl |
| pm = Saint Pierre a Miquelon |
| pn = Pitcairn |
| pr = Puerto Rico |
| ps = Tiriogaeth Palestinaidd |
| pt = Portiwgal |
| pw = Palau |
| py = Paraguay |
| qa = Qatar |
| re = Reunion |
| ro = Rwmania |
| rs = Serbia |
| ru = Ffederasiwn Rwsiaidd |
| rw = Rwanda |
| sa = Saudi Arabia |
| sb = Ynysoedd Solomon |
| sc = Seychelles |
| sd = Swdan |
| se = Sweden |
| sg = Singapore |
| sh = Saint Helena |
| si = Slofenia |
| sj = Svalbard ac Jan Mayen |
| sk = Slofacia |
| sl = Sierra Leone |
| sm = San Marino |
| sn = Senegal |
| so = Somalia |
| sr = Suriname |
| st = Sao Tome a Principe |
| sv = El Salvador |
| sy = Syria |
| sz = Swaziland |
| tc = Ynysoedd Turks a Caicos |
| td = Chad |
| tf = Tiriogaethau De Ffrainc |
| tg = Togo |
| th = Thailand |
| tj = Tajikistan |
| tk = Tokelau |
| tl = Timor-Leste |
| tm = Turkmenistan |
| tn = Tunisia |
| to = Tonga |
| tr = Twrci |
| tt = Trinidad a Tobago |
| tv = Tuvalu |
| tw = Taiwan |
| tz = Tanzania |
| ua = Wcrain |
| ug = Uganda |
| um = Ynysoedd Arfordirol llai yr Unol Daleithiau |
| us = Yr Unol Daleithiau |
| uy = Uruguay |
| uz = Uzbekistan |
| va = Dinas y Fatican |
| vc = Saint Vincent a'r Grenadinau |
| ve = Venezuela |
| vg = Ynysoedd Virgin Prydain |
| vi = Ynysoedd Virgin UDA |
| vn = Fietnam |
| vu = Vanuatu |
| wf = Wallis a Futuna |
| ws = Samoa |
| ye = Yemen |
| yt = Mayotte |
| za = De Africa |
| zm = Zambia |
| zw = Zimbabwe |