Gallwch gofrestru eich penderfyniad unrhyw amser drwy ffonio 0300 123 23 23 (gwasanaeth Gwaed a Thrawsblaniadau'r GIG fydd yn ateb y galwadau hyn), mynd iwww.rhoiorganau.orgneu drwy ddweud wrth eich teulu (a'ch ffrindiau).
You can register a decision at any time by calling 0300 123 23 23 (Calls to this phone line will be answered by NHS Blood and Transplant), by visitingOrgan donation Walesor by telling your family (and friends).