RTZ

RTZ may refer to:

• RTZ (radio station), a radio time signal station in Irkutsk, Russia
• RTZ (band), an American rock band
• Return-to-zero, a signaling protocol that returns to its "zero" state between tokens
• Return to Zork, a 1993 adventure game in the Zork series
• Rio Tinto (corporation) (previously the Rio Tinto – Zinc Corporation), a British-Australian multinational metals and mining corporation
• RTZ, a 2009 compilation album by Six Organs of Admittance