| | |
 |
 |
  |
 |
|
|  | Small, Xochitl Torres | D | NM | U.S. House | 2019 – 2021 |
| | Taber, John | R | NY | U.S. House | 1945 – 1963 |
| | Tackett, Boyd Anderson | D | AR | U.S. House | 1949 – 1953 |
| | Taft, Robert Alphonso | R | OH | U.S. Senate | 1945 – 1953 |
| | Taft, Robert, Jr. | R | OH | U.S. Senate | 1963 – 1976 |
| | Takai, Mark | D | HI | U.S. House | 2015 – 2016 |
| | Takano, Mark | D | CA | U.S. House | 2013 – 2023 |
| | Talbot, Joseph Edward | R | CT | U.S. House | 1945 – 1947 |
| | Talcott, Burt Lacklen | R | CA | U.S. House | 1963 – 1977 |
| | Talent, Jim | R | MO | U.S. Senate | 1993 – 2007 |
| | Talle, Henry Oscar | R | IA | U.S. House | 1945 – 1959 |
| | Tallon, Robert Mooneyhan, Jr. (Robin) | D | SC | U.S. House | 1983 – 1993 |
| | Talmadge, Herman Eugene | D | GA | U.S. Senate | 1957 – 1981 |
| | Tancredo, Tom | R | CO | U.S. House | 1999 – 2009 |
| | Tanner, John | D | TN | U.S. House | 1989 – 2011 |
| | Tarver, Malcolm Connor | D | GA | U.S. House | 1945 – 1947 |
| | Tate, Randy J. | R | WA | U.S. House | 1995 – 1997 |
| | Tauke, Thomas Joseph | R | IA | U.S. House | 1979 – 1991 |
| | Tauriello, Anthony Francis | D | NY | U.S. House | 1949 – 1952 |
| | Tauscher, Ellen O. | D | CA | U.S. House | 1997 – 2009 |
| | Tauzin, Billy | R | LA | U.S. House | 1980 – 2005 |
| | Taylor, Charles H. | R | NC | U.S. House | 1991 – 2007 |
| | Taylor, Dean Park | R | NY | U.S. House | 1943 – 1961 |
| | Taylor, Gene | D | MS | U.S. House | 1989 – 2011 |
| | Taylor, Gene | R | MO | U.S. House | 1973 – 1989 |
| | Taylor, Glen Hearst | D | ID | U.S. Senate | 1945 – 1951 |
| | Taylor, Roy Arthur | D | NC | U.S. House | 1960 – 1977 |
| | Taylor, Scott | R | VA | U.S. House | 2017 – 2019 |
| | Taylor, Van | R | TX | U.S. House | 2019 – 2023 |
| | Teague, Charles McKevett | R | CA | U.S. House | 1955 – 1974 |
| | Teague, Harry | D | NM | U.S. House | 2009 – 2011 |
| | Teague, Olin Earl | D | TX | U.S. House | 1947 – 1978 |
| | Tejeda, Frank Mariano | D | TX | U.S. House | 1993 – 1997 |
| | Teller, Ludwig | D | NY | U.S. House | 1957 – 1961 |
| | Tenney, Claudia | R | NY | U.S. House | 2017 – 2023 |
| | Tenzer, Herbert | D | NY | U.S. House | 1965 – 1969 |
| | Terry, John Hart | R | NY | U.S. House | 1971 – 1973 |
| | Terry, Lee | R | NE | U.S. House | 1999 – 2015 |
| | Tester, Jon | D | MT | U.S. Senate | 2007 – 2025 |
| | Tewes, Donald Edgar | R | WI | U.S. House | 1957 – 1959 |
| | Thom, William Richard | D | OH | U.S. House | 1945 – 1947 |
| | Thomas, Albert | D | TX | U.S. House | 1945 – 1966 |
| | Thomas, Bill | R | CA | U.S. House | 1979 – 2007 |
| | Thomas, Craig | R | WY | U.S. Senate | 1989 – 2007 |
| | Thomas, Elbert Duncan | D | UT | U.S. Senate | 1933 – 1951 |
| | Thomas, John | R | ID | U.S. Senate | 1945 – 1945 |
| | Thomas, Lera Millard | D | TX | U.S. House | 1966 – 1967 |
| | Thomas, Robert Lindsay | D | GA | U.S. House | 1983 – 1993 |
| | Thomason, Robert Ewing | D | TX | U.S. House | 1945 – 1947 |
| | Thompson, Bennie | D | MS | U.S. House | 1993 – 2023 |
| | Thompson, Clark Wallace | D | TX | U.S. House | 1933 – 1966 |
| | Thompson, Frank, Jr. | D | NJ | U.S. House | 1955 – 1981 |
| | Thompson, Fred | R | TN | U.S. Senate | 1994 – 2003 |
| | Thompson, Glenn | R | PA | U.S. House | 2009 – 2023 |
| | Thompson, Mike | D | CA | U.S. House | 1999 – 2023 |
| | Thompson, Ruth | R | MI | U.S. House | 1951 – 1957 |
| | Thompson, Standish Fletcher | R | GA | U.S. House | 1967 – 1973 |
| | Thompson, Theo Ashton | D | LA | U.S. House | 1953 – 1965 |
| | Thomson, Edwin Keith | R | WY | U.S. House | 1955 – 1960 |
| | Thomson, Vernon Wallace | R | WI | U.S. House | 1961 – 1975 |
| | Thone, Charles | R | NE | U.S. House | 1971 – 1979 |
| | Thornberry, Mac | R | TX | U.S. House | 1995 – 2021 |
| | Thornberry, William Homer | D | TX | U.S. House | 1949 – 1963 |
| | Thornton, Raymond Hoyt, Jr. | D | AR | U.S. House | 1973 – 1997 |
| | Thune, John | R | SD | U.S. Senate | 1997 – 2023 |
| | Thurman, Karen L. | D | FL | U.S. House | 1993 – 2003 |
| | Thurmond, James Strom | R | SC | U.S. Senate | 1954 – 2003 |
| | Thye, Edward John | R | MN | U.S. Senate | 1947 – 1959 |
| | Tiahrt, Todd | R | KS | U.S. House | 1995 – 2011 |
| | Tibbott, Harve | R | PA | U.S. House | 1945 – 1949 |
| | Tiberi, Pat | R | OH | U.S. House | 2001 – 2018 |
| | Tiernan, Robert Owens | D | RI | U.S. House | 1967 – 1975 |
| | Tierney, John F. | D | MA | U.S. House | 1997 – 2015 |
| | Tiffany, Tom | R | WI | U.S. House | 2020 – 2023 |
| | Tillis, Thom | R | NC | U.S. Senate | 2015 – 2027 |
| | Timmons, William | R | SC | U.S. House | 2019 – 2023 |
| | Tipton, Scott | R | CO | U.S. House | 2011 – 2021 |
| | Titus, Dina | D | NV | U.S. House | 2009 – 2023 |
| | Tlaib, Rashida | D | MI | U.S. House | 2019 – 2023 |
| | Tobey, Charles William | R | NH | U.S. Senate | 1945 – 1953 |
| | Todd, Paul Harold, Jr. | D | MI | U.S. House | 1965 – 1967 |
| | Tolan, John Harvey | D | CA | U.S. House | 1945 – 1947 |
| | Toll, Herman | D | PA | U.S. House | 1959 – 1967 |
| | Tollefson, Thor Carl | R | WA | U.S. House | 1947 – 1965 |
| | Tonko, Paul | D | NY | U.S. House | 2009 – 2023 |
| | Tonry, Richard Alvin | D | LA | U.S. House | 1977 – 1977 |
| | Toomey, Patrick | R | PA | U.S. Senate | 1999 – 2023 |
| | Torkildsen, Peter Gerard | R | MA | U.S. House | 1993 – 1997 |
| | Torrens, James H. | D | NY | U.S. House | 1945 – 1947 |
| | Torres, Esteban Edward | D | CA | U.S. House | 1983 – 1999 |
| | Torres, Norma | D | CA | U.S. House | 2015 – 2023 |
| | Torres, Ritchie | D | NY | U.S. House | 2021 – 2023 |
| | Torricelli, Robert Guy | D | NJ | U.S. Senate | 1983 – 2003 |
| | Towe, Harry Lancaster | R | NJ | U.S. House | 1945 – 1951 |
| | Towell, David Gilmer | R | NV | U.S. House | 1973 – 1975 |
| | Tower, John Goodwin | R | TX | U.S. Senate | 1961 – 1985 |
| | Towns, Edolphus | D | NY | U.S. House | 1983 – 2013 |
| | Traficant, James A., Jr. | D | OH | U.S. House | 1985 – 2002 |
| | Trahan, Lori | D | MA | U.S. House | 2019 – 2023 |
| | Traxler, Jerome Bob | D | MI | U.S. House | 1974 – 1993 |
| | Traynor, Philip Andrew | D | DE | U.S. House | 1945 – 1947 |
| | Treen, David Conner | R | LA | U.S. House | 1973 – 1981 |
| | Trible, Paul Seward, Jr | R | VA | U.S. Senate | 1977 – 1989 |
| | Trimble, James William | D | AR | U.S. House | 1945 – 1967 |
| | Trone, David | D | MD | U.S. House | 2019 – 2023 |
| | Trott, Dave | R | MI | U.S. House | 2015 – 2019 |
| | Tsongas, Niki | D | MA | U.S. House | 2007 – 2019 |
| | Tsongas, Paul Efthemios | D | MA | U.S. Senate | 1975 – 1985 |
| | Tuberville, Tommy | R | AL | U.S. Senate | 2021 – 2027 |
| | Tuck, William Munford | D | VA | U.S. House | 1953 – 1969 |
| | Tucker, James (Jim) Guy, Jr. | D | AR | U.S. House | 1977 – 1979 |
| | Tucker, Walter R., III | D | CA | U.S. House | 1993 – 1995 |
| | Tumulty, Thomas James | D | NJ | U.S. House | 1955 – 1957 |
| | Tunnell, James Miller | D | DE | U.S. Senate | 1945 – 1947 |
| | Tunney, John Varick | D | CA | U.S. Senate | 1965 – 1977 |
| | Tupper, Stanley Roger | R | ME | U.S. House | 1961 – 1967 |
| | Turner, Bob | R | NY | U.S. House | 2011 – 2013 |
| | Turner, Jim | D | TX | U.S. House | 1997 – 2005 |
| | Turner, Michael | R | OH | U.S. House | 2003 – 2023 |
| | Tuten, James Russell | D | GA | U.S. House | 1963 – 1967 |
| | Twyman, Robert Joseph | R | IL | U.S. House | 1947 – 1949 |
| | Tydings, Joseph Davies | D | MD | U.S. Senate | 1965 – 1971 |
| | Tydings, Millard Evelyn | D | MD | U.S. Senate | 1923 – 1951 |