Mae gan tua 1.5 miliwn o bobl y DU anabledd dysgu; rhai ohonynt yn anableddau dysgu ysgafn, cymedrol neu ddifrifol sy'n parhau drwy gydol eu bywydau. Mae'r gwasanaethau cymdeithasol yng Nghymru yn gwybod am oddeutu 15,000 o oedolion ag anabledd dysgu, ac mae’n bosibl bod o leiaf 60,000 arall nad yw’r gwasanaethau cymdeithasol yn gwybod amdanynt.
Around 1.5 million people have a learning disability in the UK; some have a mild, moderate or severe learning disability which remains throughout their lives. There are approximately 15,000 adults with a learning disability are known to social services in Wales, with potentially at least a further 60,000 people not known to social services.