Innovation in the manufacturing industry is viewed as crucial due to its substantial effects on performance. This view has led researchers to evaluate the importance of different types of innovation within manufacturing companies. The influence of marketing innovation on product innovation and overall innovative performance is examined in the present study. The study also aims to explore the influence of product innovation on innovative performance and to analyze the mediating role of product innovation in the relationship between marketing innovation and innovative performance. Questionnaires were distributed to 384 managers from Palestinian manufacturing firms through convenience sampling. Structural equation modelling was employed as the data analysis tool. According to the study's findings, marketing innovation directly and positively impacts both product innovation and innovative performance, while product innovation positively influences innovative performance. Additionally, product innovation partially mediates the relationship between marketing innovation and innovative performance. This study is different from previous research as it focuses on the interrelationships between various dimensions of firms' innovation and performance. It adds to the literature on manufacturing performance by further validating the scales of innovation and performance. This approach could offer new insights into existing models of innovation and performance, crucial for success, by examining the interrelationships among organizational innovation dimensions, specifically marketing innovation, product innovation, and innovative performance, within the Palestinian manufacturing sector, which operates in a developing country facing conflict.