Fiber-reinforced polymer (FRP) composites are widely employed in industries such as automotive, aerospace, wind energy, and construction owing to their superior strength-to-weight ratio and robustness. However, their ecological footprint, driven by energy-intensive manufacturing and end-of-life disposal challenges, demands sustainable recycling strategies. This chapter explores the life cycle assessment (LCA) of FRP composites, focusing on the environmental impact of raw material extraction, manufacturing, in-use performance, and end-of-life scenarios. It examines mechanical, thermal, and chemical recycling methods, comparing their environmental trade-offs through LCA studies. Key challenges included here are data gaps, complex multi-material compositions, durability trade-offs, and lack of standardized methodologies. Case studies from diverse industries such as automotive, wind energy, and construction sectors highlight real-world recycling applications and circular economy approaches. The chapter also considers emerging policies, industry best practices, and innovations in recyclable resins and fiber recovery to enhance sustainability. By evaluating different recycling pathways, this chapter presents insights into reducing waste, cutting carbon emissions, and fostering a circular economy for FRP composites. The findings here aim to guide researchers, industry stakeholders, and policymakers in selecting efficient and sustainable FRP recycling solutions.