Phefelia Nez is the first lady of the Navajo Nation. She is Tábąąhá (Water's Edge clan), born for Tł'ízí lání (Many Goats clan) and her maternal and paternal grandfathers are Naakai dine'é (Mexican clan). She was raised on the Hopi partition lands in Big Mountain, Arizona. She is married to Jonathan Nez and is a mother of two children, Christopher and Alexander Nez. She was raised in a traditional hogan without modern amenities and has always spent time outdoors tending to livestock and the vegetable field.
She completed her undergraduate studies in political and criminal justice at Northern Arizona University. In May 2022, she received her Master of Public Administration degree from Northern Arizona University.
The first lady's platform focuses on restoring and strengthening homes and families. Her office has set priorities, including education (early childhood education, K-12, post-secondary, cooperative extension education, adult basic education), outdoor recreation, nonprofits, volunteerism, philanthropy, financial literacy, animal welfare, retention of Navajo language and culture teachings, and faith-based initiatives.