In Portugal in 2021, 85% of children placed in out-of-home care were in non-specialized residential care. Evidence on discipline strategies used in these childcare contexts is scarce. This study aims at analyzing the discipline strategies used by caregivers in residential care based on multiple informants’ reports - children/adolescents in care, caregivers, and directors. It follows a theoretical framework that includes and relates the concept of quality in residential care, positive discipline, and the child's rights. A total of 424 children/adolescents, 266 caregivers and 60 directors in 60 residential care centers participated in this study. Data on discipline strategies were collected by interviewing all the participants and analyzed by resorting to a mixed methodology. A content analysis allowed for the identification of 33 subcategories, organized into six categories, which were computed into three major types of discipline strategies: Positive and Induction-Based Strategies, Punitive Strategies, and Strategies that Violate the Child’s Rights. Findings showed a frequent use of punitive discipline strategies that violate the child's rights. Additionally, a cluster analysis based on the reports of the three informants allowed for the identification of three groups of residential care centers that used different discipline strategies - Punitive Centers, Inductive Centers, and Rights-Violating Centers. Findings showed that Punitive Centers tend to be gender-mixed and Rights-Violating Centers tend to be gender-segregated. This study also revealed the frequent use of punitive discipline strategies that violate the child's rights in residential care, requiring the need to provide qualified training to caregivers on appropriate discipline strategies.