What is the full official name Doctor Noonien Soong gave to his android (known in ST: TNG as "Data")?
Is the entire name simply Data, or is it an acronym?
In the second season episode "The Measure of a Man", Riker pulls up Data's schematics on a wall monitor. On the lower right of the display, we see "LT CDR NFN/NMI DATA" which should be read as "Lieutenant Commander No First Name No Middle Initial Data."
Also from Measure Of A Man, this is Data's full name as shown by the Enterprise computer (to Cmdr. Riker): Lt. Cmdr. NFN NMI Data. Spelled out, this becomes: Lieutenant Commander "No First Name" "No Middle Initial" Data.
According to StarTrek.com database his full name was simply Data.
I don't recall hearing or reading about the origin of the name but it always sounded right :)