Ogonna Nneka Nnamani // ⓘ (born July 29, 1983) is a physician, retired American indoor volleyball player, and former member of the United States National and Olympic teams.

She has a younger sister, Nji, who played volleyball alongside her at Stanford University and married professional track athlete Russell Wolf Brown.

Her father, Chika Nnamani, is an adjunct professor in Politics and Government and also the former Assistant Vice President and Director of Housing at Illinois State University[8] and her mother, Uzo, is an artist and a teacher.

[12] She was a guest lecturer with Alex Rodriguez and Jeffrey K. Lee for several courses taught by Allison Kluger at the Stanford Graduate School of Business.

[14] As a sophomore, she was named an AVCA second team all-American en route to helping Stanford to an NCAA runner-up finish, losing to Pac-10 rival USC in the final.

[16] She had 27 kills while hitting .415 in NCAA Second Round win over Pacific She was named the tournament MVP at University Park Holiday Inn Classic.

In 2005, Nnamani garnered media attention for an interview with USA Today where she remarked, "I know you can run a 100-yard dash by yourself or throw a really good pitch on your own.

"[24] The quote was widely reproduced in newspapers when she was in contention for the Honda-Broderick Cup and later in September 2006 when the Italian media reported that she was being sought after by the A-1 teams.

[citation needed] Nnamani made her international professional debut under the Puerto Rican LVSF league for the Pinkin club of Corozal.

[25] Under Nnamani's leadership, the Pinkin team reached the finals of the national league for the first time since 1996, finishing second to the Carolina Gigantes.

[27] After contesting the World Cup in Japan, where the United States took a bronze medal and qualified for the 2008 Beijing Olympics, Nnamani returned to Italy and joined fellow USA Olympian Lindsey Berg at Asystel Novara.

[28] Novara finished with the bronze medal in the Indesit European Championship; highlights for Nnamani included hitting at a .710 percentage on 21 swings against her former team, Volero Zurich, in the playoffs.