- Oct 1 Mirko Vučinić, Montenegrin soccer forward (48 caps; Lecce, Roma, Juventus), born in Nikšić, Montenegro
- Oct 1 Mohamed Abdelwahab, Egyptian soccer left back (19 caps; African Cup of Nations 2006; Al Ahly SC, Aluminium Nag Hammâdi), born in Faiyum, Egypt (d. 2006)
- Oct 3 Frederico Chaves Guedes [Fred], Brazilian soccer striker (39 caps; Fluminense, Lyon), born in Teófilo Otoni, Minas Gerais, Brazil
- Oct 4 Kurt Suzuki, American baseball catcher (MLB All Star 2014; Washington Nationals), born in Wailuku, Hawaii
- Oct 5 Mashrafe Mortaza, Bangladeshi cricketer, born in Narail District, Bangladesh
- Oct 8 Michael Fraser, Scottish football goalkeeper, born in Inverness, Scotland
- Oct 8 Travis Pastrana, American motorsports competitor, born in Annapolis, Maryland
- Oct 9 Andreas Zuber, Austrian racing driver, born in Judenburg, Austria
- Oct 9 Jang Mi-Ran, South Korean weightlifter (Olympic gold 2008), born in Gangwon, South Korea
- Oct 9 Stephen Gionta, American NHL ice hockey player, 2010-19 (New Jersey Devils;, New York Islanders), born in Rochester, New York
- Oct 10 Vusimuzi Sibanda, Zimbabwean cricketer, born in Highfield, Harare, Zimbabwe
- Oct 11 Ruslan Ponomariov, Ukrainian chess player, born in Horlivka, Ukraine
- Oct 12 Alex Brosque, Australian footballer (Sydney FC), born in Sydney, Australia
- Oct 14 Lin Dan, Chinese badminton player (two-time Olympic champion, five-time World champion), born in Longyan, China
- Oct 17 Ivan Saenko, Russian football player
- Oct 20 Luis Saritama, Ecuadorian footballer, born in Loja, Ecuador
- Oct 21 Andy Marté, Dominican baseball player
- Oct 21 Zack Greinke, American baseball player
- Oct 23 Filipos Darlas, Greek footballer, born in Kenourgio, Greece
- Oct 24 Brian Vickers, American race car driver, born in Thomasville, North Carolina
- Oct 24 Marc Leishman, Australian golfer (British Open 2015 runner-up), born in Warrnambool, Victoria
- Oct 26 Dmitri Sychev, Russian football player (FC Pyunik), born in Omsk, Soviet Union
- Oct 26 Francisco Liriano, Dominican MLB pitcher, born in San Cristóbal, Dominican Republic
- Oct 26 Luke Watson, South African rugby player (Western Province), born in Port Elizabeth, South Africa
- Oct 27 Brent Clevlen, American baseball player (Detroit Tigers), born in Austin, Texas
- Oct 29 Dana Eveland, American MLB player, born in Olympia, Washington
- Oct 29 Jason Tahincioglu, Turkish-British racing driver, born in Bristol, England
- Oct 29 Maurice Clarett, American football player and public speaker, born in Youngstown, Ohio
- Oct 30 Iain Hume, Canadian footballer (Kerala Blasters), born in Edinburgh, Scotland
- Oct 30 Trent Edwards, American football player (Buffalo Bills), born in Los Gatos, California
About October 1983
How Old? 40 years old
Generation: Millennial
Leap Year: No
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions