The foot and ankle form a complex mechanical system that enables humans to walk, run, and balance. This system includes tendons, each with a highly varied mechanical property, adapted to a specific function, ranging from the highenergy- storing Achilles tendon to positional extensor tendons. This review synthesizes current evidence on the structural, material, and functional properties of all major foot and ankle tendons to provide the biomechanical basis necessary for evidence-based clinical decision-making. Understanding the tendon biomechanics of this system is fundamental to the diagnosis, treatment planning, and outcome optimization of tendinopathies.