{"id":50968,"date":"2026-03-04T15:57:08","date_gmt":"2026-03-04T15:57:08","guid":{"rendered":"https:\/\/cymru.global\/uncategorized-cy\/diwrnod-heddwch-y-byd-y-cenhedloedd-unedig-21-medi-2025\/"},"modified":"2026-03-04T15:57:21","modified_gmt":"2026-03-04T15:57:21","slug":"diwrnod-heddwch-y-byd-y-cenhedloedd-unedig-21-medi-2025","status":"publish","type":"post","link":"https:\/\/cymru.global\/cy\/rhyfel-a-gwrthdaro-cy\/diwrnod-heddwch-y-byd-y-cenhedloedd-unedig-21-medi-2025\/","title":{"rendered":"Diwrnod Heddwch y Byd y Cenhedloedd Unedig, 21 Medi 2025"},"content":{"rendered":"
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Thema #DiwrnodHeddwch 2025: ” Gweithredwch Nawr dros Fyd Heddwch<\/strong> “<\/h2>\n<\/div>
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“O gwmpas y byd mae bywydau’n cael eu rhwygo’n ddarnau, plentyndod yn cael ei ddiffodd, ac urddas dynol sylfaenol yn cael ei daflu, yng nghanol creulondeb a diraddio rhyfel.”<\/em><\/p>\n<\/div>\n\n

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Ysgrifennydd Cyffredinol y Cenhedloedd Unedig, Ant\u00f3nio Guterres<\/small><\/p>\n<\/div><\/blockquote>\n<\/div>

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O swyddfa Ysgrifennydd Cyffredinol y Cenhedloedd Unedig<\/a> :<\/p>\n<\/div>

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Mewn cyfnod o gythrwfl, cynnwrf ac ansicrwydd, mae’n hanfodol i bawb gymryd camau pendant i ymgyrchu dros heddwch.<\/p>\n<\/div>

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O geidwaid heddwch ar flaen y gad mewn gwrthdaro, i aelodau\u2019r gymuned, i fyfyrwyr mewn ystafelloedd dosbarth ledled y byd, mae gan bawb r\u00f4l i\u2019w chwarae. Rhaid inni siarad yn erbyn trais, casineb, gwahaniaethu ac anghydraddoldeb; ymarfer parch; a chofleidio amrywiaeth ein byd. <\/p>\n<\/div>

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Mae yna lawer o ffyrdd i weithredu ar hyn o bryd. Dechreuwch sgyrsiau am yr angen brys am ddealltwriaeth, di-drais, a diarfogi. Gwirfoddolwch yn eich cymuned, gwrandewch ar leisiau gwahanol i’ch lleisiau eich hun, heriwch iaith wahaniaethol yn eich gweithle, rhowch wybod am fwlio ar-lein ac all-lein, a chymerwch yr amser i wirio ffeithiau cyn i chi bostio ar gyfryngau cymdeithasol. <\/p>\n<\/div>

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Gallwch leisio eich dewisiadau, gan ddewis prynu eitemau gan frandiau sy’n ymwybodol yn gymdeithasol, neu gyfrannu at sefydliadau sy’n hyrwyddo cynaliadwyedd a hawliau dynol.<\/p>\n<\/div>

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Mae’r Cenhedloedd Unedig yn gweithio ym mhob un o’r meysydd hyn, gan arwain ymdrechion byd-eang i hyrwyddo hawliau dynol, ymladd newid hinsawdd, ac atal ac ymateb i wrthdaro.<\/p>\n<\/div>

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Drwy ei Gomisiwn Adeiladu Heddwch<\/a> , sy’n nodi ei ugeinfed pen-blwydd yn 2025, mae’r Cenhedloedd Unedig yn gweithio i fynd i’r afael \u00e2 thlodi, anghydraddoldeb, gwahaniaethu ac anghyfiawnder \u2013 pob un yn ffactorau posibl sy’n achosi trais. Drwy ei 17 Nod Datblygu Cynaliadwy<\/a> , mae’r Cenhedloedd Unedig yn cefnogi ymdrechion gwledydd i gynyddu ffyniant, codi iechyd a safonau byw, a rhoi terfyn ar bob math o wahaniaethu ac anghyfiawnder. Mae heddwchwyr y Cenhedloedd Unedig<\/a> yn gweithio mewn amodau anodd a pheryglus ledled y byd, gan ein hysbrydoli ni i gyd i weithredu. <\/p>\n<\/div>

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Ac yn ei Gytundeb ar gyfer y Dyfodol<\/a> a fabwysiadwyd yn ddiweddar, addawodd y Cenhedloedd Unedig fynd i’r afael \u00e2 heriau a chyfleoedd sy’n dod i’r amlwg \u2013 megis mewn gwyddoniaeth, technoleg ac arloesedd \u2013 a chefnogi ymgysylltiad gweithredol cenedlaethau’r dyfodol.<\/p>\n<\/div>

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Mae Ymgyrch ActNow<\/a> y Cenhedloedd Unedig wedi helpu miliynau o bobl ledled y byd i ddewis materion sy’n bwysig iddyn nhw, ymrwymo i weithredu, ac olrhain eu heffaith. Gallwch lawrlwytho ap symudol ActNow<\/a> a gweld y gwahaniaeth y mae eich gweithredoedd yn ei wneud i fyd mwy heddychlon. <\/p>\n<\/div>

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Mae ein holl ymdrechion wedi’u cysylltu. O glinigau iechyd a gefnogir gan y Cenhedloedd Unedig i eiriolaeth dan arweiniad pobl ifanc dros hawliau’r rhai mwyaf agored i niwed yn y byd, ac o ddadleuon mewn seneddau i ddadleuon yn y dosbarth hanes, gallwn ni i gyd wneud ein rhan i adeiladu byd mwy heddychlon. <\/p>\n<\/div>

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Bydded i’n gweithredoedd dros heddwch atseinio’n uwch na geiriau.<\/strong><\/p>\n<\/div>

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Cefndir<\/h2>\n<\/div>
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Sefydlwyd<\/a> Diwrnod Heddwch Rhyngwladol y Cenhedloedd Unedig ym 1981 gan Gynulliad Cyffredinol y Cenhedloedd Unedig. Ddwy ddegawd yn ddiweddarach, yn 2001, pleidleisiodd y Cynulliad Cyffredinol yn unfrydol i ddynodi’r<\/a> Diwrnod yn gyfnod o ddi-drais a chaoediad. <\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Thema #DiwrnodHeddwch 2025: ” Gweithredwch Nawr dros Fyd Heddwch “ O swyddfa Ysgrifennydd Cyffredinol y Cenhedloedd Unedig : Mewn cyfnod o gythrwfl, cynnwrf ac ansicrwydd, mae’n hanfodol i bawb gymryd camau pendant i ymgyrchu dros heddwch. O geidwaid heddwch ar flaen y gad mewn gwrthdaro, i aelodau\u2019r gymuned, i fyfyrwyr […]<\/p>\n","protected":false},"author":7,"featured_media":45685,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"iawp_total_views":2,"footnotes":""},"categories":[616],"tags":[],"class_list":["post-50968","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rhyfel-a-gwrthdaro-cy"],"acf":[],"yoast_head":"\nDiwrnod Heddwch y Byd y Cenhedloedd Unedig, 21 Medi 2025 - Cymru Global<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"cy_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Diwrnod Heddwch y Byd y Cenhedloedd Unedig, 21 Medi 2025 - Cymru Global\" \/>\n<meta property=\"og:description\" content=\"Thema #DiwrnodHeddwch 2025: ” Gweithredwch Nawr dros Fyd Heddwch “ O swyddfa Ysgrifennydd Cyffredinol y Cenhedloedd Unedig : Mewn cyfnod o gythrwfl, cynnwrf ac ansicrwydd, mae’n hanfodol i bawb gymryd camau pendant i ymgyrchu dros heddwch. 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