D. Wise was a 23rd century Starfleet commander.

He was assigned to the Starfleet Academy's Starfleet Training Command. In 2285, Wise was listed on a directory placard found on the 2nd level of Starfleet Training Command. (Star Trek II: The Wrath of Khan)

Wise later served in the planetary science division aboard the USS Enterprise-A in 2293. Wise's name appeared on an incoming message viewscreen in the quarters of the sciences division chief and executive officer, Captain Spock. (Star Trek VI: The Undiscovered Country)

This character was only mentioned in writing.
This name was seen on an okudagram on Spock's desk computer. It was an in-joke reference to Star Trek VI first assistant director Douglas E. Wise.