The Elementary Teachers' Federation of Ontario (ETFO) is the professional and protective organization representing over 76,000 teachers, occasional teachers, and education workers employed in the public elementary schools of Ontario. All public elementary teachers in Ontario are an active member of ETFO provincially, and also a member of one of its 68 locals across the province.

ETFO strives to develop programs and services that both protect and enhance the working lives of its members in these challenging times for education. It works continuously to provide an environment that celebrates the diversity of its members and the students in their care. In addition to its internal work in support of members, ETFO reaches out to the broader community to foster a climate of social justice in this province and beyond.