Lasactitudesnegativasenrelaciónconelsobrepesopuedenpromover el rechazo hacia quienes se alejan del ideal de delgadez e incentivar conductas de riesgo para el desarrollo de trastornos alimentarios. Objetivo:comparar actitudes en relación con el sobrepeso en niñas/os con sobrepeso/obesidad y normopeso/riesgo de bajo peso. Muestra y Metodología: 92 niños escolarizados (51 nenas-41 varones) de edad promedio de 10.71 (DE=0.82) años completaron una prueba de diferencial semántico para relevar actitudes hacia el sobrepeso mediante la calificación de una figura que representa a un nene con sobrepeso. Además fueron pesados y medidos por una nutricionista. Resultados:2niños(2.2%)presentaronriesgodebajopeso,40(44.9%) normopeso, 29(32.6%) sobrepeso y 18(20.2%) obesidad. Los niños califican de manera predominantemente negativa a la figura del nene con sobrepeso en cinco de los ocho pares de atributos evaluados (feliz-triste/lindo-feo/tiene muchos amigos-pocos amigos/atractivodescuidado/habilidoso-torpe). Se dividieron dos grupos según Índice de Masa Corporal: sobrepeso/obesidad(SO) y normopeso/ riesgo de bajo peso(NB). No se hallaron diferencias entre los grupos, exceptuando los pares de atributos lindo-feo y atractivo-descuidado, con una calificación más negativa entre los nenes SO. Conclusiones: se identifica una actitud predominantemente negativa en relación con el sobrepeso en niñas/os, no hallándose diferencias en función del propio peso. Palabras Clave trastornos alimentarios-actitudes-sobrepeso-niños Abstract ATTITUDES TOWARD OVERWEGHT IN CHILDREN. WEIGHT BASED DIFFERENCES. Negative attitudes toward overweight can promote rejection of those who do not meet the ideal of thinness and encourage risk behaviors for the development of eating disorders. Objective: To compare attitudes toward overweight in children with overweight/obesity and normal weight/risk of underweight. Sample and Methods: 92 school children (51 girls-41 boys) whose average age was 10.71 (SD=0.82) years, completed a semantic differential test to relieve attitudes toward overweight rating by a figure representing an overweight child. They were weighed and measured by a nutritionist. Results: 2 children (2.2%) was risk of underweight, 40(44.9%) normal weight, 29(32.6%) overweight and 18(20.2%) obese. Children describe in a predominantly negative way to the figure of overweight child in five of the eight pairs of attributes evaluated (happy-sad / cute-ugly / have many friends-few friends / attractive-unattractive / skilled-clumsy). They were divided in two groups according to Body Mass Index: overweight/obesity (OO) and normal weight/risk of underweight (NU). No differences between groups were found, except the pairs of attributes cute-ugly and attractive-unattractive, with a more negative rating among children OO. Conclusions: It was identified a predominantly negative attitude toward overweight in children, without differences between groups in terms of its own weight. Key Words eating disorders-attitudes-overweight-children