Catherine Uju Ifejika // ⓘ (born 28 October 1959) is a Nigerian lawyer and Chairperson/CEO of Brittania-U Nigeria Limited (BUNL); an indigenous petroleum company for upstream exploration and production, and Brittania-U Ghana Limited (BUGL).

[6][5] Uju Ifejika graduated from Ahmadu Bello University, Zaria with a Diploma in Law and an LLB (Hons.)

[5] As of 2003, she became Company Secretary for Public and Government Affairs for West Africa, a position in which she deal with Cameroon, Togo, Benin, Côte d'Ivoire, and the Democratic Republic of Congo.

[7] They took advantage of a government initiative for the development of marginal fields, and raised money through local investors.

[9] Uju Ifejika has stated that Brittania-U's main objectives include people's well-being, better quality of life, job opportunities, and a safe and clean environment.