Mae Llyfr Cofio Cenedlaethol Cymru o'r Rhyfel Byd Cyntaf yn cofnodi enwau 35,000 o filwyr , yn ddynion a merched o Gymru ynghyd ag aelodau o gatrodau Cymreig, a gollodd eu bywydau yn y Rhyfel Byd Cyntaf. Rhestrwyd yr unigolion yma fesul catrawd a bataliwn ochr yn ochr ag enwau'r rhai a allai'n hawdd fod wedi marw gyda nhw.

Officers; Fourth Battalion Officers; Fifth Battalion Officers; Sixth (Glamorgan) Battalion Officers; Seventh (Cyclists) Battalion Officers; First Battalion; Second Battalion; Third Battalion; First-fourth Battalion; First-fifth Battalion; Fourth-fifth Battalion; First-sixth Battalion; Seventh Battalion; Eighth Battalion; Ninth Battalion; Tenth Battalion; Eleventh Battalion; Twelfth Battalion; Thirteenth Battalion; Fourteenth Battalion; Fifteenth Battalion; Sixteenth Battalion; Seventeenth Battalion; Eighteenth Battalion; Nineteenth Battalion; Twentieth Battalion; Twenty-first Battalion; Twenty-second Battalion; Twenty-third Battalion; Twenty-fourth Battalion; Fifty-first Battalion; Fifty-second Battalion; Fifty-third Battalion; Depot