Baryons with a single heavy quark are being studied experimentally at present.
Baryons with two units of heavy flavor will be abundantly produced not only at
future colliders, but also at existing facilities. In this paper we study the
production via heavy quark fragmentation of baryons containing two heavy quarks
at the Tevatron, the LHC, HERA, and the NLC. The production rate is woefully
small at HERA and at the NLC, but significant at $pp$ and $p\bar{p}$ machines.
We present distributions in various kinematical variables in addition to the
integrated cross sections at hadron colliders.
