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August 1, 1980 
|Height||1.83 m (6 ft 0 in)|
|Manager||DNA Model Management Storm Models Viva Models OmodelAfrica|
At seventeen, Onweagba was urged by a family friend to enter into the M-Net "Face of Africa" preliminary screening at the M-Net office in Victoria Island, Lagos. The agency groomed her to be one of Nigeria's entrants for the 1998 competition (now called the Nokia Face of Africa). This despite the fact that, growing up, she had maintained a relative ignorance towards fashion and modeling. With the support of her family and friends, she decided to compete in the inaugural edition of the Face of Africa in 1998. This was the first-ever continent-wide model competition, organized by the South African channel M-Net in collaboration with Elite Model Management. She won the competition.
After moving to New York City, where she still lives, she began appearing in editorials for American and Italian Vogue, Harper's Bazaar, Marie Claire, Allure, Nylon and W. Oluchi has appeared on the covers of Italian Vogue, Elle, i-D, Pop, Untold, and Surface.
She has walked the runways for Gucci, Carolina Herrera, John Galliano, Missoni, Tommy Hilfiger, Chanel, Bottega Veneta, Christian Dior, Alessandro Dell'Acqua, Jeremy Scott, Helmut Lang, Fendi, Anna Sui, Givenchy, Kenzo, Giorgio Armani, Céline, Nina Ricci, and Diane Von Furstenberg.
She has appeared in advertising campaigns for Gianfranco Ferré, Lancôme, Ann Taylor, Clinique, Bergdorf Goodman, Nordstrom, Macy's, Banana Republic, Gap, Express, L'Oreal, Coca Cola, as well as working for Victoria's Secret in print walking for seven consecutive years in the annual Victoria's Secret Fashion Show.
Beyond modeling, Onweagba tries to serve as a role model for other aspiring talents in Nigeria, especially young girls. She volunteers her time and her image for such NGOs as LEAP Africa (an entrepreneurship incubator) and NIPRO. She also is continuing her higher education, having studied for an associate degree in the New York City educational system.
After her three-year contract with Elite expired, Onweagba signed with DNA Model Management. A highlight of her career so far was when she was featured in the Sports Illustrated Swimsuit Issue four times, from 2005 to 2008.
In 2008, she launched a modeling agency in South Africa, OModel Africa, with offices in Johannesburg and recently in Cape Town. The 2008 winner of M-Net Face of Africa, Kate Tachie-Menson, was awarded a US $50,000 modeling contract by OModel Africa. She is currently the host and head judge of Africa's Next Top Model
In 2006 Onweagba is married to Italian fashion designer Luca Orlandi. In April 2007 their son Ugochukwu was born.
- Sewing, Joy (25 March 2010). "Supermodel Oluchi Onweagba takes on the world". Houston Chronicle. Downtown Houston, Texas, USA. Retrieved 25 November 2010.
- "Fashion Model Directory: Oluchi Onweagba". Fashion Model Directory. Retrieved 22 August 2010.
- "Facing Off". Times LIVE. Johannesburg, South Africa: Tim. Retrieved 22 August 2010.
- "Model Bio: Oluchi". New York Magazine.
- Marsh, Lisa (February 11, 2004). "Show Buzz". New York Post.
- "2007 Sports illustrated Swimsuit Bio -Oluchi Onweagba". CNN/Sports Illustrated. Retrieved 2009-01-30.