- Silver Committee, Special, Senate10
- Sims, Thetus W., Select Committee to Investigate Alleged Assault upon, by Charles C. Glover1
- Small Business Committee, House6
- Small Business, Permanent Select Committee on, House1
- Small Business, Select Committee on, House32
- Small Business, Select Committee on, Senate67
- Standards, Weights, and Measures Committee6
- Standards, Weights, and Measures Select Committee1
- Supplies and Shortages of Food, Particularly Meat, Select Committee To Investigate, House1
- Supreme Court Building Commission2
- Surplus Property, Select Committee to Investigate Disposition of, House6
- Tariff Commission, Select Committee on Investigation of, Senate9
- Tax Evasion and Avoidance, Joint Committee on4
- Tax Exempt Foundations, Special Committee to Investigate, House5
- Tax-Exempt Foundations and Comparable Organizations, Select Committee to Investigate, House1
- Taxation of Governmental Securities and Salaries, Special Committee on, Senate3
- Taylor and Other Systems of Shop Management, Special Committee to Investigate3
- Telepost, Select Committee to Investigate use of, in Connection with Post Office Department1
- Tennessee Valley Authority, Joint Committee on Investigation of6
- Tensions Committee1