- Sep 1 Lucie Blackman, English murder victim (d. 2000)
- Sep 1 Max Vieri, Australian soccer forward (6 caps; Verona, Napoli), born in Sydney, Australia
- Sep 2 Matthew Watkins, Welsh rugby union centre (18 caps; Newport, Llanelli Scarlets), born in Newport, Wales (d. 2020)
- Sep 3 John Curtis, English footballer, born in Nuneaton, England
- Sep 3 Michal Rozsival, Czech ice hockey player, born in Vlašim, Czechoslovakia
- Sep 3 Nick Wechsler, American actor (Roswell), born in Albuquerque, New Mexico
- Sep 3 Paul Moor, English ten-pin bowler, born in Kingston-upon-Hull, England
- Sep 3 Valfar, Norwegian heavy metal vocalist and musician (Windir), born in Sogndal, Norway (d. 2004)
- Sep 4 Christian Walz, Swedish artist, born in Stockholm, Sweden
- Sep 4 Natalie Diaz, American Mojave poet (Postcolonial Love Poem - Pulitzer Prize for Poetry 2021), born in Needles, California
Wes Bentley (45 years old)
Sep 4 American actor (Yellowstone), born in Jonesboro, Arkansas
- Sep 5 Chris Hipkins, New Zealand Labour politician and Prime Minister of New Zealand (2023), born in Hutt Valley, New Zealand
- Sep 5 Chris Jack, New Zealand rugby union footballer (All Blacks), born in Christchurch, New Zealand
- Sep 5 Laura Bertram, Canadian actress (Trance Gemini-Andromeda), born in Toronto, Ontario
- Sep 5 Sylvester Joseph, West Indian cricketer, born in New Winthorpes, Antigua
- Sep 5 Zhang Zhong, Chinese-Singaporean chess player, born in Chongqing, China
- Sep 6 Alex Escobar, Venezuelan baseball player, born in Valencia, Carabobo, Venezuela
- Sep 6 Cisco Adler, American singer and record producer, born in Los Angeles, California
- Sep 6 Mathew Horne, English actor (Gavin & Stacey), born in Nottingham, England
- Sep 6 Natalia Cigliuti, Uruguayan-American actress (Lindsay-Saved By Bell: New Class), born in Montevideo, Uruguay
- Sep 6 Tony Thaxton, American drummer (Motion City Soundtrack), born in Mechanicsville, Virginia
- Sep 7 Adrian [General Austin] Witcher, American rapper (Another Bad Creation), born in Columbus, Georgia
- Sep 7 Erwin Koen, Dutch footballer, born in Den Helder, Netherlands
- Sep 8 Gerard Autet, Spanish footballer, born in Manlleu, Spain
- Sep 8 Gil Meche, American baseball player, born in Lafayette, Louisiana
- Sep 9 Kurt Ainsworth, American baseball pitcher, born in Baton Rouge, Louisiana
- Sep 9 Mariano Puerta, Argentine tennis player (World #9 2005; French Open runner-up 2005), born in San Francisco, Argentina
- Sep 9 Shane Battier, American basketball player, born in Birmingham, Michigan
- Sep 10 Manju Warrier, Indian Malayalam actress, producer and dancer, born in Nagercoil, India
- Sep 11 Ben Lee, Australian singer-songwriter ("Cigarettes Will Kill You"; "Love Me Like the World Is Ending"), and actor (The Rage in Placid Lake), born in Sydney, Australia
- Sep 11 Dejan Stanković, Serbian footballer (Serbia National Team captain), born in Belgrade, Serbia
- Sep 11 Ed Reed, American Pro Football HOF safety (Super Bowl 2012 Baltimore Ravens; NFL Defensive Player of the Year 2004; 5 × First-team All-Pro; 9 × Pro Bowl), born in St. Rose, Louisiana
- Sep 12 Baloji, Belgian-Congolese rapper and film director known for "Omen", born in Lubumbashi, Zaire
- Sep 12 Ben McKenzie, American actor (Gotham), born in Austin, Texas
- Sep 12 Elisabetta Canalis, Italian model and actress, born in Sassari, Italy
- Sep 12 Michael Paget, Welsh guitarist (Bullet for My Valentine), born in Bridgend, South Wales
- Sep 12 Ruben Studdard, American singer (American Idol, I Need An Angel), born in Frankfurt, Germany
- Sep 13 Darren Kenton, English footballer (Norwich City), born in Wandsworth, England
- Sep 13 Megan Henning, American actress (I Know Who Killed Me), born in Baltimore, Maryland
- Sep 13 Swizz Beatz [Kasseem Dean], American rapper and record producer (Full Surface Records), born in New York City
- Sep 14 Ben Cohen, English rugby union outside back (57 Tests; Northampton RFC, CA Brive, Sale Sharks RFC), born in Northampton, England
- Sep 14 Carmen Kass, Estonian model (estimated to have been the second-highest-paid model in the world in 2002), born in Talinn, Estonia
- Sep 14 Danielle Peck, American country music singer ("Findin' a Good Man"), born in Jacksonville, North Carolina
Ron DeSantis (45 years old)
Sep 14 American Republican politician, Governor of Florida (2019-), Representative (2013-18) and presidential candidate, born in Jacksonville, Florida
- Sep 15 Eiður Guðjohnsen, Icelandic footballer (Chelsea, Barcelona) and manager, born in Reykjavík, iceland
- Sep 16 Dan Dickau, American basketball player, born in Portland, Oregon
- Sep 16 Matthew Rogers, American TV host and country singer, born in Arcadia, California
- Sep 16 Nick Cordero, Canadian Broadway actor (Bullets Over Broadway), born in Hamilton, Canada (d. 2020)
- Sep 17 Shawn Horcoff, Canadian ice hockey player
- Sep 18 Augustine Simo, Cameroonian footballer, born in Bangangté, Cameroon
- Sep 18 Pilar López de Ayala, Spanish actress (Juana la Loca), born in Madrid, Spain
- Sep 18 Shelly Moore, Miss Teen USA (Tennessee, 1997), born in Jacksonville, Florida
- Sep 19 Michelle Alves, Brazilian supermodel, born in Londrina, Paraná, Brazil
- Sep 19 Nick Johnson, American baseball player, born in Tempe, Arizona
- Sep 19 Nigel Mitchell, English TV presenter (Quizmania and Capital Disney), born in Kingston Upon Thames, England
- Sep 20 Dante Hall, American football player
- Sep 20 Patrizio Buanne, Austrian-Italian singer and guitarist, born in Vienna, Austria
- Sep 20 Sarit Hadad [Sarah Hudadatov], Israeli pop and Mizrahi singer, born in Afula, Israel
- Sep 20 T.J. Tucker, American baseball player
- Sep 21 Doug Howlett, New Zealand rugby union footballer, born in Auckland, New Zealand
- Sep 22 Ed Joyce, Irish-English cricketer, born in Dublin, Ireland
- Sep 23 Anthony Mackie. American stage and screen actor (Brother To Brother; The Hurt Locker - "Sgt. Sanborn"; Captain America -"Falcon"), born in New Orleans, Louisiana
- Sep 23 John "Worm" Miller, American filmmaker, born in Minneapolis, Minnesota
- Sep 23 Keri Lynn Pratt, American film and television actress (Jack & Bobby), born in Concord, New Hampshire
- Sep 24 Javier Perianes, Spanish concert pianist, born in Nerva, Spain
- Sep 24 Tarek Saab, American TV show contestant (The Apprentice), born in New Bedford, Massachusetts
- Sep 25 Jodie Kidd, English model, born in Guildford, United Kingdom
- Sep 25 Joel Pineiro, Puerto Rican baseball player, born in Río Piedras, Puerto Rico
- Sep 25 Ricardo Gardner, Jamaican soccer winger (111 caps; Bolton Wanderers 342 games), born in St. Andrew Parish, Jamaica
- Sep 25 Roudolphe Douala, Cameroonian footballer, born in Douala, Cameroon
- Sep 27 Brad Arnold, American singer (3 Doors Down - "Kryptonite"), born in Escatawpa, Mississippi
- Sep 27 Jon Rauch, American baseball player (tied equal tallest MLB player at 6ft 11in), born in Louisville, Kentucky
- Sep 28 Bushido [Anis Ferchichi], German rapper, born in Bonn, West Germany
- Sep 28 Marzena Godecki, Polis-Australian actress (Ocean Girl), born in Bytom, Poland
- Sep 29 Kurt Nilsen, Norwegian pop and country singer-songwriter ("She's So High"; World Idol), born in Bergen, Norway
- Sep 30 Candice Michelle, American female wrestler
About September 1978
How Old? 45 years old
Generation: Generation X
Leap Year: No
Year of the Rabbit
Year of the Dragon
Year of the Snake
Year of the Horse
Year of the Goat/Sheep
Year of the Monkey