Heft and similar can mean:

  • Robert G. Heft, a designer of the 50-star and 51-star versions of the USA flag
  • HEFT, the Homestead Extension of Florida's Turnpike
  • Hefting, a British English term for teaching sheep to stay on a set area of land (Link to Wikitionary)
  • heft, a noun and verb meaning "weight" and "lifting"
  • Heterogeneous Earliest Finish Time, a scheduling algorithm