Marc Louis Ecko (né Milecofsky; August 29, 1972) is an American fashion designer, entrepreneur, and artist.

[1] He was brought up with his twin Marci and an older sister, Shari, in suburban Lakewood, New Jersey, where his father was a pharmacist and his mother was a real estate broker.

Early clients Spike Lee and Chuck D helped bring attention to his fledgling business, as did a Good Morning America segment that featured his T-shirt designs.

[7] Ecko's businesses have expanded to include Complex magazine, video and social gaming, and venture capital.

[12] He has supported a number of charities and organisations, including raising money for the Tikva Children's Home in Odesa, Ukraine.