This study examined relations among maternal depression, parenting behaviors, and adolescents' perceptions of family functioning. It also investigated whether parenting behavior mediated the relation between maternal depression and adolescents' perceptions of family functioning, as well as whether mother's couple relationship status moderated the relation between depression and parenting behavior. Maternal depression was not associated with adolescents' perceptions of family functioning. Maternal depression was associated with authoritarian and permissive parenting but not with authoritative parenting. Authoritarian and permissive parenting was associated with adolescents' perceptions of less positive family functioning, whereas authoritative parenting was associated with perceptions of more positive family functioning. Parenting behavior did not mediate between maternal depression and adolescents' perceptions of family functioning. Overall, mother's couple relationship status did not moderate the relation between maternal depression and parenting behavior; but there was a trend for the relation between depression and permissive parenting to be stronger when mothers were unpartnered.