The United States Senate Committee on Conservation of National Resources was established in 1909 and terminated in 1921.

Chairmen of the Committee on Conservation of National Resources

• Joseph M. Dixon (R-MT) 1910-1913
• Marcus A. Smith (D-AZ) 1913
• James K. Vardaman (D-MS) 1913-1918
• Elison D. Smith (D-SC) 1918-1919
• LeBaron B. Colt (R-RI) 1919-1921