| Firsov | Firsov (crater) | Firsov (disambiguation) |
| Firsova | Firsovka | Firsovo |
| Firsovsky | First | FIRST |
| First & 10 | First & Amistad | First & André |
| First & Andre | First & Last | First & Main |
| First & Merchants Bank | First & Merchants National Bank | First & ten |
| First & Ten | First & Third Trinity Boat Club | First 'Ndrangheta war |
| First (2004 song) | First (album) | First (Baroness album) |
| First (Baroness EP) | First (Cold War Kids song) | FIRST (constructor) |
| First (David Gates album) | First (Denise Ho album) | First (disambiguation) |
| FIRST (disambiguation) | First (EP) | First (Ferlyn G EP) |
| FIRST (For the Inspiration and Recognition of Science and Technology) | First (Grindelwald) | First (Jonas Brothers song) |
| First (Kandersteg) | First (Lauren Daigle song) | First (Lindsay Lohan song) |
| First (magazine) | FiRST (magazine) | First (Niki & Gabi song) |
| First (O'Bryan album) | First (Park) Congregational Church | First (perfume) |
| First (Raymond Lam album) | First (Schoolboy Q song) | First (Scots) Presbyterian Church |
| First (song) | First (Thai actor) | First (The Sound of Music) |
| First (track) | First (Van Cleef & Arpels) | First 1,000 days |
| First 100 days | First 100 Days (news program) | First 100 days of Barack Obama presidency |
| First 100 days of Barack Obama's Presidency | First 100 days of Barack Obama's presidency | First 100 days of Benigno Aquino III's presidency |
| First 100 days of Bill Clinton's presidency | First 100 days of Bongbong Marcos' presidency | First 100 days of Donald Trump's presidency |
| First 100 days of Dwight D. Eisenhower's presidency | First 100 days of Franklin D. Roosevelt's presidency | First 100 days of George H. W. Bush's presidency |
| First 100 days of George W. Bush's presidency | First 100 days of Gerald Ford's presidency | First 100 days of Gustavo Petro's presidency |
| First 100 days of Harry S. Truman's presidency | First 100 days of Imran Khan's premiership | First 100 days of Imran Khan's prime ministership |
| First 100 days of Jimmy Carter's presidency | First 100 days of Joe Biden's presidency | First 100 days of John F. Kennedy's presidency |
| First 100 days of Lyndon B. Johnson's presidency | First 100 days of Richard Nixon's presidency | First 100 days of Rodrigo Duterte's presidency |
| First 100 days of Ronald Reagan's presidency | First 100 days of the Barack Obama presidency | First 100 days of the Donald Trump presidency |
| First 100 days of the Franklin D. Roosevelt presidency | First 100 days of the Imran Khan premiership | First 100 days of the Joe Biden presidency |
| First 100 days of the Rodrigo Duterte presidency | First 100 days of trump | First 100 Hours |
| First 100 Years | First 1000 days | First 10R |
| First 11 | First 12 | First 14 |
| First 14 SE | First 14SE | First 18 |
| First 18 SE | First 1877 Ottoman general election | First 1891 Chilean presidential election |
| First 18SE | First 1949 Buenos Aires Grand Prix | First 20 |
| First 20 Years | First 2023 Herat earthquake | First 210 |
| First 235 | First 24 Hours of Le Mans | First 24-hour music video |
| First 25.7 | First 25S | First 26 |
| First 260 Spirit | First 265 | First 285 |
| First 305 | First 34.7 | First 4 |
| First 4 figures | First 4 Figures | First 4 Internet |
| First 4 invitational | First 42 | First 48 |
| First 5 California | First 5 LA | First 5 Los Angeles |
| First 5000 Days | First 62 Videos aired on MTV | First 9uality |
| First a Girl | First A Girl | First A Women's Basketball League of Montenegro |
| First A. K. Antony ministry | First A.M.E. Church of Los Angeles | First ABA League |
| First Abang Johari cabinet | First Abbott Ministry | First Abdication of Napoleon |
| First Abdullah cabinet | First Abe Cabinet | First Abenaki War |
| First Aberdeen | First Aberdeen bus route 13 | First Aberdeen bus route 15 |
| First Aberdeen bus routes 1 and 2 | First abstract watercolor | First Abu Dhabi Bank |
| First Abu Dhabi Bank (Dubai Metro) | First Academy Awards | First Access Entertainment |
| First Access Publishing | First Access Records | First Access Sports |
| First Aceh Expedition | First Aceh War | First Achaemenid conquest of Egypt |
| First Achutha Menon Ministry | First Achutha Menon ministry | First Act |
| First act | First Act Custom Shop | First Act Guitar Studio |
| First Act Inc | First Act Inc. | First Act Incorporated |
| First Act of Supremacy | First Act Stakes | First Act, Inc |
| First Act, Inc. | First Active | First active player in one of the four major U.S. professional sports leagues to come out as gay |
| First active player in U.S. major-league sports to come out as gay | First actuality | First Ada |
| First Adenauer cabinet | First Admiral Chester Nimitz | First Admiral Chester William Nimitz |
| First Adriatic Basketball League | First Adriatic League | First Advent Sunday |
| First aerial circumnavigation | First aerial crossing of the South Atlantic | First Affair |
| First Affair (film) | First Affiliated Hospital | First Affiliated Hospital Dalian Medical University |
| First Affiliated Hospital of Nanchang University | First Affiliated Hospital of Xinjiang Medical University | First Affiliated Hospital of XMU |
| First Affiliated Hospital of Zhengzhou University | First Affilliated Hospital of Zhengzhou University | First affirmative constructive |
| First affirmative rebuttal | First Affliated Hospital of Xinjiang Medical University | First Affliated Hospital of XMU |
| First Afghan War | First Afghan war | First AFL |
| First AFL-NFL World Championship Game | First African American | First african american church 1793 |
| First African American mayor | First African Baptist Church | First African Baptist Church (Beaufort , South Carolina) |
| First African Baptist Church (Beaufort, South Carolina) | First African Baptist Church (Columbus, Georgia) | First African Baptist Church (disambiguation) |
| First African Baptist Church (Lexington, Kentucky) | First African Baptist Church (Philadelphia) | First African Baptist Church (Richmond, Virginia) |
| First African Baptist Church (Savannah) | First African Baptist Church (Savannah, Georgia) | First African Baptist Church (St. Louis, Missouri) |
| First African Baptist Church (Tuscaloosa, Alabama) | First African Baptist Church and Parsonage | First African Baptist Church and Parsonage (Georgetown, Kentucky) |
| First African Baptist Church and Parsonage (Scott County, Kentucky) | First African Baptist Church and Parsonage (Waycross, Georgia) | First African Baptist Church at Raccoon Bluff |
| First African Baptist Church Parsonage | First African Baptist Church Parsonage (Columbus, Georgia) | First African Clean Technology Fund |
| First African Methodist Episcopal Church | First African Methodist Episcopal Church of Los Angeles | First African Missionary Baptist Church |
| First African New Church | First African-American | First africans in james town |
| First Africans in Jamestown | First Africans in Virginia | First Afro-Asian Games |
| First Age | First Age (Middle earth) | First Agrarian Reform Law |
| First Agricultural Adjustment Act | First agricultural revolution | First Agricultural Revolution |
| First aid | First Aid | First aid (disambiguation) |
| First Aid (film) | First Aid (short story) | First Aid (Transfomers) |
| First Aid (Transformers) | First Aid (TV series) | First Aid Africa |
| First aid bag | First aid blanket | First aid box |
| First Aid Care Team | First Aid Care Team (FACT) | First Aid Convention Europe |
| First Aid Council of India | First Aid for Asthma | First Aid for Bleeding |
| First Aid for Dora | First aid for dora | First aid kit |
| First aid Kit | First Aid Kit | First Aid Kit (album) |
| First Aid Kit (band) | First Aid Kit (band) discography | First aid kit (disambiguation) |
| First Aid Kit (disambiguation) | First Aid Kit (Maddie Poppe song) | First Aid Kit (song) |
| First Aid Kit discography | First aid kits | First Aid Nursing Yeomanry |
| First Aid Only | First aid post | First aid pouch |
| First aid room | First Aid squad | First Aid Squad |
| First aid station | First aid tent | First Aid Wade |
| First Aid/Emergencies | First Aider | First aider |
| First Aiders | First AIF | First Air |
| First Air 6560 | First Air Army | First Air Army (Japan) |
| First Air charter flight 6560 | First Air Fleet | First Air Flight 6560 |
| First Air Force | First Air Force (Air Forces Northern) | First Air Force (ANG) |
| First Air Force Aces football | First Air Force Group Training Stations | First Air Force Replacement Training Stations |
| First Air Force Tactical Airfields | First Air Group | First air raid on singapore |
