Introduction Obesity is a global problem that is challenging to prevent and expensive to treat. Early childhood interventions show promise in establishing lifelong healthy eating patterns, however a better understanding of how parental feeding practices develop is needed. The study aimed to investigate maternal perception of infant weight and its relationship to feeding practices and infant dietary intake. Methods A questionnaire was completed by 263 Queensland mothers of infants aged between 5 and 13 months. Logistic regression was used to describe the association between maternal feeding practices (restriction, pressure-to-eat, monitoring), parenting style (warmth, hostility), infant weight concern and infant dietary intake. Correlation and linear regression were used to identify relationships between maternal feeding practices, parenting style, infant weight concern and infant weight. Results Mothers were found to be more concerned about underweight than overweight, misjudge infants as being underweight and failed to recognise overweight infants. Underweight concern was associated with infant weight (r = -0.27, p < 0.01), early introduction of solids (OR 0.24, CI 0.11-0.51) and pressure-to-eat (r = 0.19, p < 0.01). Pressure-to-eat was associated to maternal perception of infant weight (r = - 0.21, p < 0.01), infant weight (r = - 0.17, p < 0.05) and lower fruit and vegetable intake (OR 0.50, CI 0.27-0.92). Restrictive feeding practices were correlated to overweight concern (r = 0.08, p < 0.05). Discussion Maternal infant weight perception and concerns are related to control feeding practices which can be detrimental to infant dietary intake. Inability to recognise healthy weight may ignite these concerns or fail to address infant feeding risk factors. Discussing healthy growth should be a fundamental component of strategies to support healthy infant feeding and eating.