• Jefferies & Company, a global investment bank and institutional securities firm

• Alan Jefferies
  Alan Jefferies
  Alan Jefferies is an Australian poet and children's author currently living in Brisbane.He grew up in Cleveland on the Queensland coast. He published his first poems in 1976 and since then his work has appeared in magazines and newspapers in Australia and overseas...
  
   (born 1957), Australian writer
• Chris Jefferies
  Chris Jefferies
  Christopher Allen Jefferies is an American former professional basketball player. He played for the Toronto Raptors and the Chicago Bulls in the NBA....
  
   (born 1980), American basketball player
• Cindy Jefferies
  Cindy Jefferies
  UK children's writer with sixteen books in print. She is best known for her series Fame School about a group of children who are singing, playing and dancing their way to success in the music industry. This very English approach to the subject found a wide and enthusiastic audience, and has so far...
  
  , English writer of fiction for children
• Gregg Jefferies
  Gregg Jefferies
  Gregory Scott "Gregg" Jefferies is a retired infielder/outfielder in Major League Baseball who had a 14-year career from 1987 to 2000.-New York Mets:...
  
   (born 1967), American baseball infielder
• Jim Jefferies
  Jim Jefferies
  James "Jim" Jefferies is a Scottish football former player and manager. Jefferies played for Heart of Midlothian for almost his whole playing career and enjoyed a successful first managerial spell with the club, winning the 1998 Scottish Cup...
  
   (born 1950), British football manager
• Mark Jefferies
  Mark Jefferies
  Mark Jefferies was a bushranger, serial killer and cannibal in the early 19th century in Van Diemen's Land . Jefferies was transported as a convict from Scotland, and had there been granted a reprieve from death as he was willing to act as an executioner and scourger...
  
   (died 1826), Australian outlaw & prisoner
• Matt Jefferies
  Matt Jefferies
  Walter Matthew Jefferies — known as Matt Jeffries — was an aviation and mechanical artist, set designer and writer, best known for designing the original Starship Enterprise for the Star Trek television series....
  
   (1921-2003), American artist, set designer and writer
• Richard Jefferies
  Richard Jefferies
  John Richard Jefferies was an English nature writer, noted for his depiction of English rural life in essays, books of natural history, and novels. His childhood on a small Wiltshire farm had a great influence on him and provides the background to all his major works of fiction...
  
   (1848-1887), British writer

See also

• Jefferies tube
  Jefferies tube
  Jefferies tubes, in the Star Trek fictional universe, are narrow tunnels or corridors that provide access to critical starship systems. They can be vertically or horizontally oriented, and form a network that allows travel throughout large volumes of a starship even when the turbolifts are not...
  
  , fictional machinery-access mechanism in Star Trek live-action follow-ons
• Jeffreys (disambiguation)
• Jeffery (disambiguation)
• Jeffrey (disambiguation)