Merthyr Tydfil libraries are delivered on behalf of Merthyr Tydfil County Borough Council by WellbeingMerthyr (previously Merthyr Tydfil Leisure Trust).
Caiff llyfrgelloedd Merthyr Tudful eu darparu ar ran Cyngor Bwrdeistref Sirol Merthyr Tudful gan LlesMerthyr (Ymddiriedolaeth Hamdden Merthyr Tudful gynt).