This cross-sectional study aimed to evaluate depression and anxiety symptoms of the children/grandchildren of COVID-19 patients, children/grandchildren of healthcare workers who have not infected COVID-19, and children/grandchildren of the control group. Parent and children’s perception about COVID-19–related stigma is also investigated and compared between groups. The perception about COVID-19–related stigma between different age and gender groups among children also investigated and compared. The mental health of the 71 participants aged 6–18 years was evaluated via a telemedicine-based semi-structured interview between March and April 2020. Children’s Depression Inventory (CDI), the Screen for Child Anxiety-Related Emotional Disorders (SCARED), and COVID-19–Related Stigma Form were administered to the participants. A significant negative correlation was found between age and separation anxiety disorder ( p = .005) and a significant positive correlation was found between age and generalized anxiety disorder ( p = .035) in the SCARED-Child report. Generalized anxiety disorder was found to be higher in females compared to males. A significant difference was found between the groups of parents in the COVID-19–Related Stigma Form. Patients infected with COVID-19, healthcare workers, and the control group have different perceptions about COVID-19–related stigma. The age of the children have an impact on stigma perceptions. Anxiety symptoms of children affected by age and gender. Future studies are recommended to determine the other factors associated with perceptions about COVID-19–related stigma among children and parents.