MARC is the four letter acronym for the fashion designer Marc Jacobs. He is an American fashion designer who has been designing since the 1980s. He is known for his modern and sophisticated designs, which have been featured in many fashion shows and magazines. He has won numerous awards for his work, including the Council of Fashion Designers of America's Womenswear Designer of the Year award in 1992. He is also the creative director of the French fashion house Louis Vuitton.