Namri Songtsen (Wylie: gnam ri srong btsen), also known as "Namri Löntsen" (Wylie: gnam ri slon mtshan) (570?–618?/629) was, according to tradition, the 32nd King of Tibet of the Yarlung Dynasty, which until his reign ruled only the Yarlung Valley. He expanded his kingdom to rule the central part of the Tibetan Plateau. His actions were decisive in the setting up of the Tibetan Empire (7th century), to which he can be named co-founder with his son, Songtsen Gampo.