Introduction: Fundamental movement skills (FMS) are categorized into three groups (stability, locomotion, and object control) and are crucial for enabling the practice of physical activity in children with physical disabilities. Their development is influenced by the specific nature of each child's disability. FMS can be evaluated by process- (movement execution) or product-oriented (movement outcome) assessments. This scoping review explored FMS development in children with physical disabilities and its relationship with physical activity. Method: Following Preferred Reporting Items for Systematic review and Meta-Analysis extension for scoping reviews guidelines, the search was conducted across six databases (MEDLINE, CINAHL, Web of Science, SPORTDiscus, EMBASE and PsycINFO) and used keywords related to FMS, physical literacy, and physical disabilities. Articles were included if participants had physical disabilities, were aged between 3 and 18 years, and if they explored the relationship between FMS and physical activity and/or physical literacy. Results: Twenty-two studies were included. Both process- and product-oriented assessments reported lower FMS proficiency in children with physical disabilities. Older children demonstrated better proficiency. Most studies highlighted a significant relationship between FMS and physical activity. Conclusion: Enhanced knowledge of effective strategies and evidence-based practices will enable practitioners to create supportive environments, encourage active participation, and track progress, ultimately leading to improved motor skills and overall well-being in children.