Each Park is governed by a board comprising two thirds local councillors appointed by constituent local authorities, and one third appointed by The Welsh Ministers.
Caiff ei reoli gan Gyngor Llywodraethu sy’n cynnwys Llywydd Tribiwnlys Prisio Cymru, tri chynrychiolydd cenedlaethol, a hyd at dri aelod a benodir gan Lywodraeth Cymru.