Marc Jacobs (born April 9, 1963) is an American fashion designer. He is the head designer for his own fashion label, Marc Jacobs, and formerly Marc by Marc Jacobs, a diffusion line, which was produced for approximately 15 years having been discontinued after the 2015 fall/winter collection. At one point there were over 200 retail stores in 80 countries. He was the creative director of the French design house Louis Vuitton from 1997 to 2014.
Jacobs was on Time magazine's "2010 Time 100" list of the 100 most influential people in the world, and was #14 on Out magazine's 2012 list of "50 Most Powerful Gay Men and Women in America". He was married on 7 April 2019 to his long time partner, Charly Defrancesco.

Marc Jacobs was born to a non-observant Jewish family in New York City. When he was seven, his father, an agent at the William Morris Agency, died. His mother, who remarried three times, was "mentally ill" and "didn't really take care of her kids", according to Jacobs. As a teenager, he went to live with his paternal grandmother on the Upper West Side, in an apartment in the Majestic on Central Park West.

Jacobs grew up in Teaneck, New Jersey and attended Teaneck High School.
He attended the High School of Art and Design and studied at the Parsons School of Design in New York. While at Parsons in 1984, he won the Perry Ellis Gold Thimble Award, Chester Weinberg Gold Thimble Award, and Design Student of the Year. In 1987 he became the youngest designer ever to receive the Council of Fashion Designers of America's Perry Ellis Award for New Fashion Talent. He also won the Women's Designer of the Year award from the Council of Fashion Designers of America in 1993
In February 2013, Jacobs was named the new creative director for Diet Coke. In honor of the brand's 30th anniversary, Jacobs would spend one year where he was slated to give the brand a "stylish and light-hearted" makeover. In March 2013, the New York Daily News revealed that the "faux fur" used in many Marc Jacobs garments is actually the fur from raccoon dogs from China.

In October 2013, after the Spring/Summer 2014 show, it was revealed that Marc Jacobs would leave Louis Vuitton to focus on his own line.

On January 9, 2014 it was announced that Jacobs's new Spring/Summer collection would feature actress/singer Miley Cyrus, photographed by David Sims.

On February 26, 2014, it was announced that actress Jessica Lange would be the new face of Marc Jacobs Beauty. In addition, it was announced that Lange would be featured in the brand's Summer/Fall print-ad campaign photographed by David Sims, and would also star in a short campaign film directed by Jacobs, to start streaming online May 5, 2014. Previously, Jacobs had dressed and interviewed Lange for Love Magazine's fifth anniversary issue, and had her provide a spoken-word version of Happy Days Are Here Again as the soundtrack for his Autumn/Winter 2014 show.

For the first time Marc Jacobs decided to rely on social media to cast models for Marc by Marc Jacobs's Autumn/Winter 2014 campaign and with its success did so again for Spring/Summer 2015 with photographer David Sims, with models including Aaron Whitty, Abigail Lipp, Amy Woodman, Ana Viktoria, Dylan Stevens, Eb Eunbi, Lindsay Lurgin, MacKenzie Cockerill, Nadia Kishlan, and Toks Adewetan.

In February 2018, LVMH confirmed that Baja East co-founder John Targon would join Marc Jacobs as "creative director of contemporary".

On August 26, 2019, Jacobs was presented with MTV's first "Fashion Trailblazer Award" at the Video Music Awards, in partnership with the Council of Fashion Designers of America

Awards
Council of Fashion Designers of America:
• MTV VMA Fashion Trailblazer Award, 2019
• Womenswear Designer of the Year, 2016
• Lifetime Achievement Award, 2011
• Womenswear Designer of the Year, 2010
• Accessory Designer of the Year, 2005
• Accessory Designer of the Year, 2003
• Menswear Designer of the Year, 2002
• Accessory Designer of the Year, 1999
• Accessory Designer of the Year, 1998
• Womenswear Designer of the Year, 1997
• Womenswear Designer of the Year, 1992
• Womenswear Designer of the Year, 1991

In Summer 2013, there were 285 Marc Jacobs retail stores (including Marc by Marc Jacobs & Marc Jacobs Collection) in 60 countries. In December 2013, the new Marc Jacobs flagship store opened in Shanghai.

In March 2015, Marc Jacobs announced the end of his secondary brand Marc by Marc Jacobs in order to focus on the development of his main label Marc Jacobs and to target to a more luxury-oriented audience