ShiKahr, also spelled ShirKahr or Shi'Kahr, could refer to:
- ShiKahr, the capital city of Vulcan
- VSS ShiKahr, a Vulcan starship of the mid 23rd century commanded by Captain Spock in the Second History.
- USS ShirKahr (NCC-31905), a Federation Miranda-class starship in service in the 24th century.
- the ShiKahr-class of Federation light cruiser starships in service during the 24th and 25th centuries.
- ShiKahr, a Memory Omega starship