Jeffrey Corwin is an American biologist and wildlife conservationist, known for hosting Disney Channel's Going Wild with Jeff Corwin, The Jeff Corwin Experience on Animal Planet, ABC's Ocean Mysteries with Jeff Corwin/Ocean Treks with Jeff Corwin and Wildlife Nation with Jeff Corwin.

Jeff Evans is a British writer and journalist. He is the author the Good Bottled Beer Guide, and was the editor of the Good Beer Guide from 1991 to 1998. He has also written extensively about television.

Jeff Gelb is an American writer and editor. He won the 2005 Bram Stoker Award for Best Anthology with Del Howison for the book Dark Delicacies: Original Tales of Terror and the Macabre.

Howard Jeffrey Gottesfeld is an American novelist, playwright, and screen and television writer. In recent years he has focused on writing texts for picture books for children, grades two and up.

Jeff Grubb is an author who writes novels, short stories, and comics and a computer and role-playing game designer in the fantasy genre. Grubb worked on the Dragonlance campaign setting under Tracy Hickman, and the Forgotten Realms setting with Ed Greenwood. His written works include The Finder's Stone Trilogy, the Spelljammer and Jakandor campaign settings, and contributions to Dragonlance and the computer game Guild Wars Nightfall (2006).

Jeffery Richard (Jeff) Hearn is a British sociologist, and Research Professor at the University of Huddersfield, and Professor at the Hanken School of Economics.

Jeffrey "Jeff" Kingston is an American professor at Temple University, Japan Campus in Tokyo and an author. He has written a number of books, wrote regularly for The Japan Times, and frequently comments on Asian affairs in mass media outlets.

Jeffrey Patrick Kinney is an American author and cartoonist, best known as the creator of the children's book series Diary of a Wimpy Kid. He also created the child-oriented website Poptropica.

Jeff Lemire (/ləˈmɪr/; born March 21, 1976) is a Canadian comic book writer, artist, cartoonist, and television producer. He is the author of critically acclaimed titles including the Essex County Trilogy, Sweet Tooth, and The Nobody. His written work includes All-New Hawkeye, Extraordinary X-Men, Moon Knight and Old Man Logan for Marvel; Superboy, Animal Man, Justice League Dark, Green Arrow and Absolute Flash for DC; Black Hammer and Mazebook for Dark Horse; Descender and Gideon Falls for Image Comics; and Bloodshot Reborn for Valiant.

Jeffry P. Freundlich, primarily known by his pen name Jeff Lindsay, is an American playwright and crime novelist best known for his novels about sociopathic Miami Police Department forensic analyst and serial killer-killing vigilante Dexter Morgan.