This quasi-experiment examined the impact of the jigsaw cooperative learning technique on enhancing the speaking skill of Kuwaiti student-teachers of English. In the first semester of 2019/2020, 40 female students enrolled in a Conversation Course were divided equally into control and experimental groups based on an oral presentation task (pre-test). Data was assessed through a speaking skill competency rubric (vocabulary, accuracy, fluency, and pronunciation). The post-test results indicated statistically significant differences between the means of the participants in favor of the experimental group. A pre-post experiment questionnaire was also administered to identify students’ attitudes towards the jigsaw technique. SPSS program was used for data analysis. The t-test results showed a positive attitude of the experimental group towards cooperative learning and the jigsaw technique. It isrecommended to use the jigsaw technique to improve students’ speaking skills.