Bob blwyddyn, bydd mwy a mwy o ddinasyddion Ewropeaidd yn teithio o fewn yr Undeb gan fwynhau gwyliau, ymweld â ffrindiau neu berthnasau a gweithio neu ddilyn hyfforddiant.
As a citizen of a Member State of the European Union, however, you are no ordinary tourist or traveller: you are entitled to certain rights, such as the right to enter and live temporarily in another Member State.