The aim of this study is to investigate the effectiveness of storytelling in improving English vocabulary learning among children in kindergarten. Twenty Iranian children (9 boys and 11 girls) in a private kindergarten in Kerman, Iran, were the participants of the study. All of the children were five years old and were taught English with the same teacher in a class in a kindergarten. The design of the study was one group pre-test post-test quasi experimental design. Both pre and post-tests included 20 vocabulary picture items taken from a story book teaching in the kindergarten. The statistical analysis revealed that storytelling was effective in increasing vocabulary learning among kindergarten children.