Samding Dorje Phagmo Dorjidak Gompa (Tibetan: རྡོ་རྗེ་བྲག་དགོན་པ།, Wylie: rdo rje brag dgon pa "Indestructible Rock Vihara") or Tupten Dorjidak Dorjé Drak Éwam Chokgar (Tibetan: ཐུབ་བསྟན་རྡོ་རྗེ་བྲག་རྡོ་རྗེ་བྲག་ཨེ་ཝཾ་ལྕོག་སྒར་, Wylie: thub bstan rdo rje brag rdo rje brag e waM lcog sgar) is a Tibetan Buddhist monastery and one of the Nyingma school's "Six Mother Monasteries" in Tibet.

[1] Dorje Drak is also the name of the monastery built to replace it in Shimla, India after the original was destroyed during the Battle of Chamdo.

However, when Kelzang Pema Wangchuk, The Fifth Dorje Drak Rigdzin (1719/20-1770/71) was enthroned as the monastery's third throne holder, its buildings were still lying mostly in ruins.

He "gave teachings, commissioned numerous objects of faith, sponsored the printing of scriptures, and emphasized the study of the Jangter and other traditions' texts.

Nonetheless it has been gradually restored in recent years through the efforts of the present incarnation of Dordrak Rigdzin, who lives in Lhasa, and those of Kelzang Chojor and the local community.

It was destroyed in 1959 before the Cultural Revolution, but the Chanting Hall (the main temple), in which there is a large statue of Guru Rinpoche (Padmasambhava), and Jokhang have been restored.

[2] The current throneholder is Taklung Tsetrul Rinpoche or known as Shedup ninche thinley palzangpo who also accepted the position of Head of the Nyingma sect on 22 March 2012.