Cesario Estrada Chavez was an American labor leader and civil rights activist. Along with Dolores Huerta and lesser known Gilbert Padilla, he co-founded the National Farm Workers Association (NFWA), which later merged with the Agricultural Workers Organizing Committee (AWOC) to become the United Farm Workers (UFW) labor union. Ideologically, his worldview combined left-wing politics with Catholic social teachings.
Born in Yuma, Arizona, to a Mexican-American family, Chavez began his working life as a manual laborer before spending two years in the U.S. Navy. Relocating to California, where he married, he got involved in the Community Service Organization (CSO), through which he helped laborers register to vote. In 1959, he became the CSO's national director, a position based in Los Angeles. In 1962, he left the CSO to co-found the NFWA, based in Delano, California, through which he launched an insurance scheme, a credit union, and the El Malcriado newspaper for farmworkers. Later that decade, he began organizing strikes among farmworkers, most notably the successful Delano grape strike of 1965–1970.