<P> Originally , co-creator Sam Rolfe wanted to leave the meaning of U.N.C.L.E. ambiguous so it could refer to either `` Uncle Sam '' or the United Nations . Concerns by Metro - Goldwyn - Mayer 's ( MGM ) legal department about using `` U.N. '' for commercial purposes resulted in the producers ' clarification that U.N.C.L.E. was an acronym for the United Network Command for Law and Enforcement . Each episode had an `` acknowledgement '' to the U.N.C.L.E. in the end titles . </P>
what does uncle stand for in the show man from uncle
United Network Command for Law and Enforcement