Xin Ra-Havreii
- Full Name: Xin Ra-Havreii
- Species: Efrosian
- Gender: Male
- c.2340: Theoretical engineer, Starfleet; Utopia Planitia Fleet Yards (TTN Novel: Taking Wing)
- By 2369: Commander, theoretical engineer, Starfleet; Utopia Planitia Fleet Yards (TTN Novel: Taking Wing)
- 2369: Project supervisor, Luna-class development project (TTN Novel: Taking Wing)
- Project placed on hold 2373 following eruption of Dominion War (TTN Novel: Taking Wing)
- Project resumed 2376 (TTN Novel: Taking Wing)
- 2369: Project supervisor, Luna-class development project (TTN Novel: Taking Wing)
- December 2379: Commander, acting chief engineer, Starfleet; USS Titan (TTN Novel: Taking Wing)
- Following the death in action of Commander Nidani Ledrah (TTN Novel: Taking Wing)
- Permanent assignment January 8, 2380 (TTN Novel: Taking Wing, et al.)