The Commission believes that the name is a suitable alternative to merely combining the UK Parliamentary constituency names which would make for an unnecessarily unwieldy name.
Fodd bynnag, mae’r Comisiwn o’r farn bod yr enw’n adnabyddadwy ac y byddai’n helpu etholwyr i wahaniaethu rhwng enw’r cyngor sir, sef Sir Gâr, ac enw etholaeth y Senedd.