Jackknife Method

Jackknife may refer to:
* Pocketknife or jackknife, a compact, foldable knife
* Jackknife Bar, Portland, Oregon, U.S.
* Jackknifing, a type of crash with articulated vehicle combinations

Film and television

* '' Jacknife'', a 1989 American film by David Jones
* "Jack Knife", an episode of ''NCIS''
* Jackknife, a character on '' Superjail!''

Athletics and sports

* Jackknife (exercise), an abdominal exercise
* Jackknife, a kicking move involving 540-degree rotation
* Jackknife, a type of high dive
* Jackknife hold, a pinning move in professional wrestling

Other uses

* Jackknife (statistics), a resampling technique in statistics
* Jackknife clam, common name for several species of bivalve mollusc

See also

* Jackknife Bascule Bridge, a bridge in Thunder Bay, Ontario, Canada
* '' The Jack-Knife Man'', a 1920 film
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