Agile marketing has emerged as a transformative approach to enhancing responsiveness, adaptability, and innovation in dynamic business environments. This paper presents a comprehensive review of agile marketing practices within cross-functional teams, emphasizing their role in driving product growth through collaborative frameworks. Unlike traditional marketing models, agile marketing fosters iterative experimentation, real-time feedback loops, and data-driven decision-making. When integrated into cross-functional teams comprising marketers, product managers, designers, developers, and data analysts it enables synchronized goal-setting, streamlined workflows, and faster go-to-market strategies. The review analyzes the core principles of agile marketing, including sprints, stand-ups, user stories, and backlog grooming, and how these are adapted within multidisciplinary teams to align marketing outputs with evolving customer needs. It examines the synergies created when diverse skill sets converge around shared product goals, leading to increased innovation, reduced silos, and a continuous delivery mindset. Additionally, the paper explores frameworks such as Scrum, Kanban, and hybrid models in the context of collaborative marketing initiatives, supported by tools like Jira, Trello, and Asana. Empirical evidence from various industries including technology, retail, and SaaS illustrates the impact of agile cross-functional teams on product growth indicators such as customer acquisition, retention, and lifetime value. The study highlights best practices for team structuring, role clarity, communication norms, and performance measurement. It also addresses challenges such as role overlap, cultural resistance, and coordination inefficiencies, offering actionable recommendations for overcoming these barriers. This review contributes to the understanding of how agile marketing, when executed in cross-functional contexts, not only improves operational efficiency but also accelerates product-market fit and customer engagement. It provides a roadmap for organizations aiming to foster a collaborative, high-performance marketing culture capable of adapting to constant market change.