David Takemura was a Human Starfleet officer in the mid-to-late 24th century.
In 2364, he held the rank of lieutenant commander. On stardate 41547.8, a list of names, including his, were sent to the USS Matte Fringe by Admiral Daniel Curry of Starfleet Mission Operations Division. The individuals on this list had received security clearances for a project involving this Federation starship. (TNG: "Conspiracy")
In 2372, he was a tactical ops officer who worked on the USS Valiant. (DS9: "Valiant" set artwork)
His first mention was on a mission order. Takemura's name was listed on the dedication plaque of the
Valiant after visual effects supervisor David Takemura.