The Big Jump is a science fiction novel by American writer Leigh Brackett, centered on the first crewed expedition to Barnard's Star.

Its first book publication was in the early Ace Double D-103 with Philip K. Dick's first novel, Solar Lottery.

[1] The novel begins with the entire Solar System waiting for the news of the first successful interstellar expedition to Barnard's Star, a mission named "The Big Jump".

The protagonist Comyn attempts to uncover the truth about the Big Jump and his missing friend, crewman Paul Rogers.

The Encyclopedia of Science Fiction described it as "efficient but seem somewhat routine when set beside Brackett's best single pure-sf work, The Long Tomorrow.