A couturier is a person involved in the clothing fashion industry who makes original garments to order for private clients. A cotourier may make what is known as haute couture. He or she usually hires patternmakers and machinists for garment production, and is either employed by exclusive boutiques or is self employed.

As a surname, it may also refer to:

• Paul Couturier (1881-1953), French priest and ecumenist