Cunaehr tr'Mandak
- Full name: Cunaehr ir'Ra'tleihfi tr'Mandak (ENT Novel: Kobayashi Maru)
- Species: Romulan
- Gender: Male
- Studied at the Bardat Academy, Romulus (ENT Novel: The Good That Men Do)
- Warp propulsion engineer in the early-to-mid 22nd century (ENT Novel: The Good That Men Do)
- By c.mid-2140s: Assistant to Doctor Ehrehin tr'Avrak in the Romulan Star Empire's warp seven project (ENT Novel: The Good That Men Do)
- Assisted Ehrehin for "twelve fvheisn" as of mid-July 2155 (ENT Novel: Kobayashi Maru)
- By c.mid-2140s: Assistant to Doctor Ehrehin tr'Avrak in the Romulan Star Empire's warp seven project (ENT Novel: The Good That Men Do)
- Death: January 24, 2155; Unroth III
- Killed in the aftermath of failed warp seven experiment (ENT Novel: The Good That Men Do)
- Charles Tucker took up identity of Cunaehr May 2155 (ENT Novel: The Good That Men Do)