Lopön Tenzin Namdak (Tibetan: སློབ་དཔོན་བསྟན་འཛིན་རྣམ་དག, Wylie: slob dpon bstan 'dzin rnam dag, born 1926 in Khyungpo Karu – Wylie: khyung po dkar ru – in Kham) is a Tibetan religious leader and the most senior teacher of Bon, in particular of Dzogchen and the Mother Tantras.