Louvier

"I don't think Enterprise will ever have a chief engineer more in love with his ship."

- Pike, on Louvier's relationship with the Enterprise

Louvier was a male Human Starfleet officer who served as chief engineer aboard the USS Enterprise (NCC-1701) by 2257. He was noted for his devotion to the Enterprise.

After the Enterprise suffered a ship-wide systems failure, Louvier and his crew investigated and determined that the holographic communicator had crippled the ship. In response Captain Christopher Pike ordered Louvier to remove the holographic communicators from the ship. 

By the time James T. Kirk assumed command of the Enterprise Louvier had been succeeded as Chief Engineer by one Montgomery Scott.