The Louis Vuitton logo has two parts, the monogram and the spelled out “Louis Vuitton”. The monogram was created as an original piece and is not created using a font. You can recreate the look of the “LV” monogram by using Berthold Walbaum Standard BQ Medium with some modifications (Slant the L, leave the V and thicken the serifs.)
The “Louis Vuitton” text in the logo uses a slightly modified Futura Headline.
Both of these fonts are commercial fonts. Click the links below to purchase them.