List of freshman class members of the 115th United States Congress
The 115th United States Congress began on January 3, 2017. There were seven new senators and 52 new representatives at the start of its first session.
The Co-Presidents of the Freshman Class in the House of Representatives were Val Demings and Jack Bergman.
New members of the 115th Congress
Senate
| State | Image | Senator | Incoming class seniority | Party change? | Prior political experience | Birth year |
| California | No Open seat Replaced Barbara Boxer | Attorney General of California, San Francisco District Attorney | 1964 | |||
| Illinois | Yes Defeated Mark Kirk | U.S. Representative Assistant Secretary of Veterans' Affairs | 1968 | |||
| Indiana | No Open seat Replaced Dan Coats | U.S. Representative | 1972 | |||
| Louisiana | John Neely Kennedy | No Open seat Replaced David Vitter | State Treasurer of Louisiana | 1951 | ||
| Maryland | No Open seat Replaced Barbara Mikulski | U.S. Representative, State Senator, State Delegate | 1959 | |||
| New Hampshire | Yes Defeated Kelly Ayotte | Governor of New Hampshire, State Senate Majority Leader | 1958 | |||
| Nevada | No Open seat Replaced Harry Reid | Attorney General of Nevada | 1964 |
House of Representatives
| District | Representative | Party change | Prior background | Birth year |
| No | State Senator | 1946 | ||
| No | State Senator | 1958 | ||
| No | Deputy Assistant Secretary of Commerce | 1976 | ||
| No | Deputy District Attorney, Monterey County; Lieutenant, U.S. Navy | 1969 | ||
| No | Santa Barbara County Supervisor | 1964 | ||
| No | Hermosa Beach City Councilwoman | 1976 | ||
| No | State Senator; Orange County Supervisor; State Assemblyman | 1958 | ||
| No | State Labor Secretary; CEO Metropolitan Wilmington Urban League | 1962 | ||
| No | State Representative | 1982 | ||
| Yes | Surgeon; Major, U.S. Army | 1953 | ||
| No | Sheriff of Duval County | 1952 | ||
| No | State Senator; State Representative | 1948 | ||
| Yes | Professor, Rollins College; National Security Specialist | 1978 | ||
| No | State Senator; State Representative | 1978 | ||
| Yes | Chief of Orlando Police Department | 1957 | ||
| Yes | Governor; Attorney General; Commissioner of Education; State Senator | 1956 | ||
| Yes | Staff Sergeant, U.S. Army | 1980 | ||
| No | Businessman; United States Ambassador to the Holy See | 1953 | ||
| No | Mayor of West Point; Dentist | 1966 | ||
| No | Businessman; Deputy State Treasurer | 1973 | ||
| Yes | U.S. Representative for IL-10 | 1961 | ||
| No | State Senator; Lieutenant, U.S. Navy | 1979 | ||
| No | Businessman | 1983 | ||
| No | Obstetrician; Captain, U.S. Army | 1960 | ||
| No | Reserve Deputy Marshal of Lafayette; St. Landry Parish Sheriff's Deputy | 1961 | ||
| No | State Representative | 1972 | ||
| No | Lieutenant Governor; State Delegate; Colonel, U.S. Army | 1961 | ||
| No | State Senator | 1962 | ||
| No | Lieutenant General, U.S. Marine Corps | 1947 | ||
| No | Businessman | 1956 | ||
| No | Radio talk show host | 1955 | ||
| Yes | Brigadier General, U.S. Air Force | 1963 | ||
| Yes | Computer Programmer; President, Congregation Ner Tamid | 1957 | ||
| Yes | State Senator; State Assemblyman | 1980 | ||
| Yes | U.S. Representative for NH-1 | 1952 | ||
| Yes | Government staffer and speechwriter | 1975 | ||
| No | Nassau County Executive; Mayor of Glen Cove | 1962 | ||
| No | State Senator; State Assemblyman | 1954 | ||
| No | State Assemblyman | 1952 | ||
| No | State Assemblywoman | 1961 | ||
| No | Businessman | 1971 | ||
| No | Special Agent, FBI | 1973 | ||
| No | State Senator, West Lampeter Township Supervisor | 1964 | ||
| No | U.S. Attorney, W.D. Tenn. | 1966 | ||
| No | Attorney | 1967 | ||
| No | Businessman; Texas Tech Vice Chancellor; Government staffer | 1972 | ||
| No | State Delegate, Captain, Navy SEAL | 1979 | ||
| Yes | State Senator, State Delegate | 1961 | ||
| No | State Senator; Commonwealth's Attorney of Louisa County; Captain, U.S. Army | 1972 | ||
| No | State Senator | 1965 | ||
| No | Businessman; Captain, U.S. Marine Corps | 1984 | ||
| No | Deputy Assistant Secretary of State for Near Eastern Affairs | 1966 |