Objective: To explore associations of early infant feeding with (i) eating patterns in the second year of life and (ii) weight status in the fourth year of life in a prospective cohort of children in Scotland. Design: Growing Up in Scotland (GUS) longitudinal birth cohort study (2005)(2006)(2007)(2008). Setting: Scotland, UK. Subjects: Children aged 9-12 months (n 5217) followed through to 45-48 months. Results: Infant feeding was associated with eating patterns, defined by using SPSS two-step cluster analysis, in the second year of life. Children who were ever breast-fed compared with never breast-fed (adjusted OR 5 1?48, 95 % CI 1?27, 1?73) were more likely to have a positive eating pattern (Cluster 2). Children who started complementary feeding at 4-5 months or 6-10 months compared with 0-3 months (adjusted OR 5 1?32, 95 % CI 1?09, 1?59 or AOR 5 1?50, 95 % CI 1?19, 1?89) were more likely to belong to Cluster 2. Breast-feeding was negatively associated with being overweight or obese in the fourth year of life compared with no breast-feeding (adjusted OR 5 0?81, 95 % CI 0?81, 1?01). Introduction of complementary feeding at 4-5 months compared with 0-3 months was negatively associated with being overweight or obese (adjusted OR 5 0?74, 95 % CI 0?57, 0?97). Conclusions: Breast-feeding and introduction of complementary feeding after 4 months were associated with a positive eating pattern in the second year of life. Introduction of complementary feeding at 4-5 months compared with 0-3 months was negatively associated with being overweight or obese.