M - brands for men
- M & O
- M By Bruno Magli
- M Missoni
- M44 Label Group
- Ma'ry'ya
- Maaji
- MAC Jeans
- Maceoo
- Mackage
- Mackintosh
- Made In Italy
- Madewell
- Madison Creek Outfitters
- Magaschoni
- Magazzino Ricambi
- Magda Butrym
- Magliano
- Magliano X Dsquared2
- Magnanni
- Maharishi
- Mains
- Maison Kitsuné
- Maison Labiche
- Maison Margiela
- Maison Mihara Yasuhiro
- Maison Scotch
- Majestic Filatures
- Majestic International
- MAJJI
- Majo
- Maker's
- Malbon Golf
- Malo
- Mammut
- Manebi
- Manifattura Ceccarelli
- Manipur
- Manolo Blahnik
- Manuel Ritz
- Marathon Sports
- Marathon Sportswear
- Marc Darcy
- Marc Jacobs
- Marc Joseph New York
- Marcelo Burlon
- Marco Pescarolo
- Margaret Howell
- MARIANO NAPOLI
- Marimekko
- Marine Serre
- Mario Portolano
- Mario Valentino
- Market
- MarMar Copenhagen
- MARMOT
- Marni
- Marsell
- MARSEM
- Marsh WEAR
- Martin Dingman
- Martine Rose
- Martinelli
- Mason's
- Massimo Alba
- Master Craft Union
- MASTER OF ARTS
- Mastermind Japan
- Masutto
- Matisse
- Matsuda
- MATT & NAT
- Matttew
- Maui Jim
- Mauna Kea
- Mauritius
- Maurizio Baldassari
- Maurizio Miri
- Mavi
- Mavrans
- Max Mara
- Maxine Of Hollywood
- Mayoral
- MAZARI
- Mazzarelli
- MC2 Saint Barth
- McLaren
- MCM
- Members Only
- Men's
- MEPHISTO
- Mercier
- Merrell
- MeUndies
- Meyer
- Mezlan
- Mfpen
- Mia
- Michael Coal
- MICHAEL COAL 1+
- Michael Kors
- Michael Kors Outlet
- MICHELE CARBONE
- MICHELE PAOLONI
- Mihara Yasuhiro
- Millet
- Mimi Tutu
- Mini Melissa
- Minnetonka
- Minnow
- Minus One
- MISBHV
- Mish Mish
- Missoni
- Mitchell & Ness
- Miu Miu
- Mix No. 6
- Mizumi Couture
- Mizuno
- Mizzen + Main
- MNTRX
- Moa Master Of Arts
- Molo
- Moma
- Moncler
- Moncler Jr
- MONCLER X ASAP ROCKY
- Monfrere
- MONICA + ANDY
- Mono B
- Monobi
- MONT BLANC
- Montana Silversmiths
- Montana West
- Montbell
- Montblanc
- Montecore
- Montedoro
- Montirex
- MONTURA
- MOON BOOT
- Moon Boot X Guest In Residence
- Moorer
- Moose Knuckles
- Mordecai
- Moretti
- Moschino
- Most Wanted
- MOTHER
- Mountain Hardwear
- MOUSSY VINTAGE
- Mouty
- Mr & Mrs Italy
- Mr P.
- Mr. Leight
- Mr. Wave
- Msgm
- MUCK
- Mudpie
- Munich
- Murder FM
- Museum Of Peace & Quiet
- Mustang
- My Favorite
- Mykita
- Mykos
- Mythinks
- Myths