Pius Nwankwo Okeke (born 30 October 1941) is a Nigerian astronomer and educator who contributed immensely to African space research.

Pius Nwankwo Okeke was born on 30 October 1941 in Oraukwu, Anambra Central Senatorial District, Nigeria.

[6] In 1979, Okeke moved as a Postdoctoral researcher to the University of Cambridge to work under the supervision of Professor Martin Rees.

[6] Okeke was a visiting scientist at the University of Tuebingen (1995) and Harvard–Smithsonian Center for Astrophysics (1997), a senior research fellow at the National Astronomical Observatory of Japan (1993), a visiting professor at the South African Astronomical Observatory (1996), and an external Board Member of the National Research Foundation (South Africa) from 1994 until 2000.

[6] Okeke was the President of the African Astronomical Society and the director of the Centre for Basic Space Science.

[10] He has made an immeasurable contribution to the development of academics, supposedly, responsible for producing around 3/4 of the Nigeria’s astronomers.