Brands
- Nellie Mean
- Nelly De Grab
- Nelson Caine
- Nettie Original
- New York Creation
- Newform
- Nita Hats, Dallas
- Noreen Fashion
- Noreen Fashions
- Norman Durand
- Norman-Paulin
- NRA Label
- Odette Barsa
- Ogens, New York - Milwaukee
- Oh Hats
- Oleg Cassini
- Olga
- Original Brandt
- Original by Lee Leon, New York
- Original by Sherman
- Original by Woodmere
- Original Caroline
- Original Chapeau by Louise
- Original Chapeaux Louise