Family name origins & meanings
- English : occupational name for the servant of someone who bore the personal name Jack.
- English : Americanized form of French Jacquème (see James).
- Americanized form of one or more like-sounding Jewish surnames.
- Americanized spelling of German Jachmann or Jackmann, from a Czech pet form of a name ultimately from the Biblical name Yochanam (see John) + Middle High German man ‘man’.