This study examined the role of family-related (mother's education, depressive symptoms and child's gender) and kindergarten-related (teacher's experience, teaching practices and class size) factors in mothers' and teachers' mutual trust in Estonia and Finland. Six hundred eighteen (206 Estonian and 412 Finnish) mothers of kindergarten children and their teachers (26 Estonian, 49 Finnish) participated in the study. Both mothers and teachers filled in the questionnaire on trust; teachers' teaching practices were observed with early childhood classroom observation measure. The results of multilevel modelling showed that mothers in both countries trusted more in teachers who used child-centred rather than teacher-directed practices. Teachers indicated higher trust in highly educated mothers and mothers of girls. Estonian teachers with longer work experience trusted more in mothers than less experienced teachers, and Finnish teachers trusted less in mothers reporting more depressive symptoms. The results emphasise the importance of both family-related and kindergarten-related factors in the enhancement of mutual trust.