For other uses, see Cairo.

The USS Cairo was a Federation Constitution-class starship serving in the 23rd century of the alternate reality created by Nero. As of 2255, the ship was powered down and used for Starfleet Academy training exercises. (TOS - Starfleet Academy novel: The Delta Anomaly)

Constitution-class heavy cruiser flagships (alternate reality)
	Arlington • Aurora • Cairo • Constellation • Cutlass • Enterprise • Excalibur • Exultant • Nebula • Paladin • Ranger • Sentinel • Vanguard