Tetsu Ikuzawa (生沢徹, Ikuzawa Tetsu, born 21 August 1942) is a Japanese former racing driver, team executive, and businessman from Tokyo, Japan. He is one of the most successful and prolific Japanese drivers from the early years of the nation's automobile racing history. Ikuzawa was the first Japanese driver to regularly compete in a number of notable European championships, namely the British Formula Three Championship and European Formula Two Championship. He was also one of the first Japanese drivers to compete in the 24 Hours of Le Mans endurance race, making his first start in 1973 for Sigma Automotive alongside his countryman, Hiroshi Fushida. In domestic competition, Ikuzawa won the 1964 and 1967 Japanese Grand Prix sports car races, and the 1977 Fuji Grand Champion Series.