The yellow jack is a species of offshore marine fish in the jack family.

Yellow Jack(s) or Yellowjack(s) may also refer to:

• Yellow fever, an acute viral disease.
• Yellowjack, a name of the dragonfly Notogomphus praetorius
• Yellow Jack (play), a 1934 American play about the search for the causes and treatment of yellow fever.
• Yellow Jack, a 1938 film adaptation of the play.
• Yellow Jack (flag), a yellow flag used to identify ships quarantined due to the presence of disease.
• Yellowjacks, an aerobatic display team of the Royal Air Force

See also

• Yellowjacket (disambiguation)

This disambiguation page lists articles associated with the title Yellow jack.
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