The GCA Metlaok was a starship in active service in the late 2360s.
In 2369, the Metlaok was named on the chart "Sector Ipai Relay Log – Relay Message Flow 1293" in Relay Station 47 Ops. This ship, from its position in Sector 23891, sent a message to Relay Station 8110 and Relay Station 902N via commercial five. The ship's next mission was in starbase construction in a named sector. (TNG: "Aquiel", production art)
This starship was only mentioned in writing.