Peterson Zah (1937-2023) was an American politician who held several offices with the Navajo Nation. From 1983 to 1987, he was chairman of the Navajo Nation, its then-head-of-government. At its 1991 restructuring, he became the first president of the Navajo Nation, until 1995. He then worked at Arizona State University as special adviser to the president on American Indian Affairs, and consulted companies willing to work with the Nation.