Jackknife
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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
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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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