This research discusses the application of the Teams Games Tournament (TGT) learning model in Fiqh subjects to increase students' interest in learning at MTs Al-Azhar Peterongan Jombang. The method used is a quantitative method, a type of Classroom Action Research (PTK) research based on the Kemmis & McTaggart model, which consists of planning, action, observation and reflection. This research was carried out in two cycles, with the aim of improving the learning process gradually. The research results show that the application of TGT significantly increases students' interest in learning. In the first cycle, students began to show more active involvement, while in the second cycle, student participation increased by 30%. The TGT learning model has succeeded in creating a fun and competitive learning atmosphere, in accordance with the principles of collaboration and continuous improvement in the Kemmis & McTaggart PTK model. In conclusion, the TGT model is effective in increasing students' interest in learning and can be applied as an innovative learning strategy. This research contributes to the development of CAR-based learning methods to improve the quality of education. This research discusses the application of the Teams Games Tournament (TGT) learning model in Fiqh subjects to increase students' interest in learning at MTs Al-Azhar Peterongan Jombang. The method used is Classroom Action Research (PTK) based on the Kemmis & McTaggart model, which consists of planning, action, observation and reflection. This research was carried out in two cycles, with the aim of improving the learning process gradually.