Self-stigma detracts from the wellbeing, selfesteem, and social connectedness of adults with mental health disorders. Although emerging research has indicated that self-stigma may have similar consequences for parents of children with mental health disorders, currently we lack a comprehensive description of how parents experience self-stigma. To address this, we investigated parents' lived experiences of self-stigma using a descriptive qualitative approach. Directed by interview questions informed by a parent-based participatory action research group (n = 4), we conducted individual semi-structured interviews with 12 parents of children (aged 5-13) diagnosed with emotional and/or behavioural disorders. Data obtained from interviews with 11 mothers was coded and thematically analysed. Five themes were found: (1) the 'good parent' ideal, (2) awareness of external stigma, (3) outcomes of external stigma (social avoidance and self-doubt), (4) selfstigma (believing self-doubt and external stigma), and (5) refuting self-stigma. Our findings show that parents of children with mental health disorders experience selfstigma. However, because it leads to a diminished sense of being a good parent, the self-stigma is of a different type to that which has been described for adults with mental illness. This has important implications for the conceptualisation and assessment of parent self-stigma as research in this area moves forward.