This study examined, in 102 mother-daughter dyads, whether (a) girls' social skills and loneliness are related to girls' social anxiety, after adjusting for girls' depressive symptoms, and (b) mothers' social functioning (social anxiety, social skills, and loneliness) is related to girls' social anxiety, after accounting for girls' social functioning (social skills and loneliness) and mothers' and girls' depressive symptoms. After accounting for girls' depression, girls' loneliness (and not social skills) was related to girls' self-reported social anxiety and girls' social skills (and not loneliness) were related to mothers' reports of girls' social anxiety. Mothers' social functioning accounted for significant variance in girls' social anxiety, beyond that accounted for by girls' social functioning and mothers' and girls' depression. Mothers' loneliness and fear of negative evaluation showed significant relations to girls' social anxiety when variance attributable to other variables was partialed out, whereas mothers' social skills and social avoidance and distress did not. Directions for future research on social anxiety are highlighted.