- Oct 1 Matt Cain, American baseball pitcher (SF Giants; perfect game 2012; MLB All Star 2009, 11-12), born in Dothan, Alabama
- Oct 2 Marion Bartoli, French tennis player (Wimbledon 2013), born in Haute-Loire, France
- Oct 4 Álvaro Parente, Portuguese auto racer (British F3 C’ship 2005; Formula Renault 3.5 Series 2007), born in Porto, Portugal
- Oct 5 Kenwyne Jones, Trinidadian footballer, born in Point Fortin, Trinidad and Tobago
- Oct 7 Salman Butt, Pakistani cricket batsman (33 tests, 3 x 100, 10 x 50, HS 122; Lahore Whites, National Bank of Pakistan), born in Lahore, Pakistan
- Oct 10 Paul Posluszny, American football linebacker (Pro Bowl 2013 Jacksonville Jaguars), born in Butler, Pennsylvania
- Oct 10 Rod Benson, American basketball player, born in Fairfield, California
- Oct 10 Troy Tulowitzki, American baseball shortstop (MLB All Star 2010, 11, 13–15; Gold Glove Award 2010, 11; Colorado Rockies), born in Santa Clara, California
- Oct 11 Sergio Hellings, Dutch footballer (Roeselare), born in Amsterdam
- Oct 13 Frank Simek, American soccer player, born in St. Louis, Missouri
- Oct 14 LaRon Landry, American NFL football player, 2007-14 (Washington Redskins, and 2 other teams), born in Metairie, Louisiana
- Oct 17 Jelle Klaasen, Dutch darts player (BDO World Champion 2006), born in Alphen, Netherlands
Lindsey Vonn (39 years old)
Oct 18 American alpine skier (Olympic gold 2010, 4 World Cup Championships), born in St. Paul, Minnesota
- Oct 20 Andrew Trimble, Northern Irish rugby player (Irish national team), born in Coleraine, Northern Ireland
- Oct 21 Anouk Leblanc-Boucher, French Canadian short track speed skater
- Oct 21 Kenny Cooper, American soccer forward (10 caps), born in Baltimore, Maryland
- Oct 21 Kieran Richardson, English soccer utility (8 caps; Manchester United, Sunderland, Fulham, Aston Villa), born in Greenwich, England
- Oct 26 Adriano Correia Claro, Brazilian footballer, born in Curitiba, Brazil
- Oct 26 Jefferson Farfán, Peruvian footballer (PSV), born in Lima, Peru
- Oct 26 Sasha Cohen, American figure skater (Grand Prix Final Champion 2003; Olympic silver 2006), born in Los Angeles, California
- Oct 27 Brady Quinn, American football quarterback (Cleveland Browns, Denver Broncos) and broadcaster (CBS Sports HQ, Fox Sports), born in Columbus, Ohio
- Oct 27 Irfan Pathan, Indian cricket all-rounder (29 Tests, 1 x 100, HS 102, 100 wickets, BB 7/59; 120 ODIs; Baroda, Middlesex CCC, Kings XI Punjab, Delhi Daredevils), born in Vadodara, Gujarat, India
- Oct 28 Obafemi Martins, Nigerian footballer
- Oct 29 Eric Staal, Canadian ice hockey center (Stanley Cup 2006 Carolina Hurricanes; World C'ship gold 2007; Winter Olympic gold 2010), born in Thunder Bay, Ontario
About October 1984
How Old? 39 years old
Generation: Millennial
Leap Year: Yes
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions