Another name is the Tryambakam Mantra, which refers to Shiva’s three eyes. For instance, it is also called the Rudra Mantra, where Rudra is the fierce aspect of Shiva. Maha Mrityunjaya Mantra means the ‘great Death-Conquering Mantra’.
This great Mantra, which is dedicated to Shiva, is found in the Rig Veda (Mandala VII, Hymn 59).