Stroop test has not been used to examine the reading performance of Kurdish speakers of English as a second language. Therefore, the aim of this study is to use English and Kurdish Stroop tasks to investigate the reading performance of Kurdish Learners of ESL. The six males and three females who participated in this research represent the sample of the study. They read and name Stroop stimuli in each of the six tasks which were divided into two parts; three Kurdish tasks and three English ones. The results of the difference of time and the scores of the Stroop effect show that the time to complete the English tasks was longer than that of the Kurdish tasks, but the Stroop effect is almost equal in both Kurdish and English conditions. Moreover, the overall dominance of Kurdish language affects and facilitates the processing of the Kurdish Stroop tasks. The high reading performance of the participants is also noted and this indicates the suitability of English and Kurdish Stroop tests with Kurdish speakers of English.