Sefydlwyd Cwmni Theatr Ieuenctid Cymru yn yr 1970au, gyda’r nod o ddarparu cyfleoedd i bobl ifanc rhwng 14 ac 19 oed i fwynhau ac ehangu eu profiadau celfyddydol trwy gyfrwng y Gymraeg, ond daeth i ben yn 2019.
Cwmni Theatr Ieuenctid was set up in the 1970s, with the objective of providing opportunities for 14 to 19-year-olds to enjoy and expand their arts experiences through the medium of Welsh, but ceased to operate in 2019.