Jeffrey Kluger (born 1954) is an American editor at large at Time magazine and author of thirteen books on various topics, such as The Narcissist Next Door (2014); Splendid Solution: Jonas Salk and the Conquest of Polio (2005); The Sibling Effect (2011); and Lost Moon: The Perilous Voyage of Apollo 13 (1994).

From July 1987 to September 1996, Kluger was a staff writer for Discover magazine, writing the humor column "Light Elements".

During his tenure at Time, Kluger has written articles covering the Mars Pathfinder landing and the 2003 Columbia disaster.

[citation needed] He is the author or co-author of more than 45 cover stories, including Time's coverage of the Oklahoma tornadoes of 2013, the Fukushima disaster in 2011, the battle to eradicate polio (2011) and the developing science of caring for premature babies (2014).

Kluger has authored numerous books, most notably Lost Moon: The Perilous Voyage of Apollo 13 (October 1994), with coauthor Jim Lovell.