The highest run-scorer in Test cricket is Sachin Tendulkar, who scored 15,921 runs in 200 matches over a 24-year career. Renowned for his consistency, technique, and longevity, Tendulkar set numerous records, including 51 Test centuries. Other prolific scorers include Ricky Ponting, Jacques Kallis, and Rahul Dravid, but Tendulkar remains the unparalleled leader in Test run-scoring history.