| First Class 8 | First class 8 | First Class van Eeckelghem |
| First Class Van Eeckelghem | First Coast | First Colony Life |
| First Come, First Served | First Comes Courage | First Comics |
| First Contact | First Contact (série australienne) | First contact (série australienne) |
| First Contact - Episode 0 | First Cow | First Cut |
| First Dance | First Data | First Data 500 |
| First Data Corporation | First Data Field | First Date |
| First Date (chanson de Yukiko Okada) | First Date (film) | First Daughter |
| First day cover | First Daze Here - The Vintage Collection | First de Launay*HN |
| First de Retz | First demo tape | First Direct Arena |
| First Ditch Effort | First Division Monument | First Dog |
| First Down (épisode de Prison Break) | First Draft News | First Earth Battalion |
| First edition | First Edition | First Encounter Assault and Recon |
| First Encounter Assault Recon | First Encounters | First Essay for Orchestra |
| First European Air Traffic Controller Selection Test | First expired, first out | First Family 4 Life |
| First Fleet | First Flight Airport | First Flight Boulder |
| First flush | First Folio | First Fragment |
| First Girl I Loved | First Great Eastern | First Great Western |
| First Great Western Link | First Group | First Hawaiian Bank |
| First Hawaiian Center | First Hill | First Horizon Park |
| First Houses | First Hull Trains | First Impressions |
| First Impressions (1959) | First Impressions (comédie musicale) | First Impressions (Demo) |
| First Impressions of Earth | First impressions of earth | First Impressions Of Earth |
| First In First Out | First in, first out | First In, First Out (gestion) |
| First in, first out (informatique) | First International Computer | First Interstate Bank |
| First Interstate World Center | First Issue | First It Giveth |
| First Kill | First Kill (série télévisée) | First Kiss |
| First kiss | First Kiss (chanson) | First Kiss (homonymie) |
| First Knight | First Ladies National Historic Site | First Lady |
| First lady | First Lady (film) | First Lady (film, 1937) |
| First Lady Michelle Obama | First Lady of European Jazz | First Lady of the United States |
| First Lego League | First lieutenant | First Lieutenant |
| First Light Imaging | First Light of Dawn | First Line |
| First Live 1993 | First Look Media | First Lord of the Admiralty |
| First Lord of the Treasury | First Love | First Love (album d'Hikaru Utada) |
| First Love (album de Hikaru Utada) | First Love (album de Karina Pasian) | First Love (album) |
| First Love (chanson d'Hikaru Utada) | First Love (chanson de Jennifer Lopez) | First Love (chanson) |
| First Love (film, 1939) | First Love (film, 2010) | First Love Sisters |
| First Love, le dernier yakuza | First Love, le dernier Yakuza | First Man |
| First Man - le premier homme sur la Lune | First Man - Le Premier Homme sur la Lune | First Man - Le premier homme sur la Lune |
| First man - Le premier homme sur la lune | First Man : le premier homme sur la Lune | First Man : Le Premier Homme sur la Lune |
| First Man : Le Premier Homme sur la Lune (film) | First Man : Le Premier Homme sur la Lune (récit) | First Man: The Life of Neil A. Armstrong |
| First Mariner Arena | First Match | First Meditations |
| First Mesa | First Mesa (Arizona) | First Mission |
| First Monday | First Monday in October | First Murder |
| First Narrows Bridge | First National | First National Bank |
| First National Bank (Afrique du Sud) | First National Bank (Uvalde) | First National Bank Building |
| First National Bank Building (Stephenville) | First National Bank Building (Texas) | First National Bank of New York |
| First National Bank Stadium | First National Bank Tower | First National City Bank of New york |
| First National Exhibitors' Circuit | First National Exhibitors’ Circuit | First National Pictures |
| First Nations | First Nations Transportation | First Nations University of Canada |
| First Niagara | First Niagara Bank | First Niagara Center |
| First Night | First of the Year | First of the Year (Equinox) |
| First Orbit | First Oscar | First Over Germany |
| First Pacific | First Party System | First past the post |
| First Peoples Mountain | First Peoples National Party of Canada | First Period |
| First person shoot | First person shooter | First Person Shooter |
| First Person Sneaker | First Person View | First Prayer |
| First Presbyterian Church | First Presbyterian Church of Stamford | First Pull Up, Then Pull Down |
| First Quantum Minerals | First Quantum Minerals Ltd. | First Rand |
| First Rays of the New Rising Sun | First Recordings 1973 | First Reformed |
| First Reproducts | First Republic Bank | First Responder Bowl |
| First Responder Bowl 2018 | First Responder Bowl 2019 | First Responder Bowl 2020 |
| First Responder Bowl 2021 | First Responder Bowl 2022 | First Responder Network Authority |
| First Samurai | First ScotRail | First Sea Lord |
| First Second | First Second Books | First second books |
| First Sensibility | First Sessions | First Signs of Frost |
| First Solar | First South Carolina Volunteer Infantry | First South Carolina Volunteers |
| First Special Service Force | First Squad | First Squeeze! |
| First State | First Step | First Sting |
| First Stop | First Story | First Street (métro de Los Angeles) |
| First Strike | First Strike Still Deadly | First Sunday |
| First Take | First Take (album de Roberta Flack) | First Target |
| First Ten Years | First Tennessee Park | First Texas Products |
| First they killed my father | First Things | First Time |
| First Time (EP) | First Time EP | First Time Live |
| First to Fight | First to Fight (film) | First to the Moon : The Journey of Apollo 8 |
| First to the Moon: The Journey of Apollo 8 | First Touch Games | First Tower |
| First TransPennine Express | First Transpennine Express | First Traveling Saleslady |
| First TV | First Union Center | First Union Classic |
| First Union Invitational | First Union National Bank | First Union Spectrum |
| First Unitarian Church of Philadelphia | First United Methodist Church of Chicago | First United States Army |
| First Utility | First Utterance | First Vienna |
| First Vienna FC | First Vienna FC 1894 | First Vienna FC 1894 (féminines) |
| First Wave | First Wave (TV series) | First We Take Manhattan |
| First Winter (film, 1981) | First World Hotel & Plaza | First world problem |
| First World Towers | First-class cricket | First-person adventure |
| First-person shooter | First-person view | First-person-Shooter |
| First-rate | FirstBank Stadium | Firstborn |
| FirstEnergy | FirstEnergy Stadium | FirstEnergy Stadium (Cleveland) |
| FirstGroup | FirstMerit Bank Pavilion | FirstMerit Tower |
| FirstNet | FirstOntario Centre | FirstRand |
| Firth | Firth (Idaho) | Firth (Nebraska) |
| Firth (rivière) | Firth of Clyde | Firth of Fifth |
| Firth Of Fifth | Firth of fifth | Firth of Forth |
| Firth of Lorn | Firth of Lorne | Firth of Tay |
| Firth of Thames | Firthcliffe (New York) | Firts Hull Trains |
| Firudin Bey Vezirov | Firuz | Firuz Abbad |
| Firuz Kazemzadeh | Firuz Kuh | Firuz Mustafayev |
| Firuz Shah Tughluq | Firuzabad | Firuzabadi |
