教母 (jiào mǔ) literally combines 教 (jiào), meaning 'to teach' or 'religious instruction', and 母 (mǔ), meaning 'mother'. Together, it refers to a woman who sponsors a child at baptism in Christian traditions—serving as a spiritual guide and moral role model. Unlike biological motherhood, this relationship is formalized through religious ceremony and carries responsibilities such as supporting the child’s faith development.

The term is used almost exclusively in Christian contexts in China, especially among Catholic and Protestant communities. It reflects values of mentorship, commitment, and intergenerational care. While not part of traditional Chinese folk religion, it has been adopted into Mandarin with its original ecclesiastical meaning intact. The word is neutral in register and appropriate in both spoken and written formal settings involving family or religious life.