This paper examines the role of librarians in e-learning programs, as a consequence of post-COVID adaptations in Nigerian universities. Through a review of the relevant literature and of current practice in existing e-learning programs in Nigerian universities, a discussion is developed around the significant roles librarians can play. The embedded librarianship model was identified as the best practice to adopt in order to secure a place for librarians and libraries in Nigeria in the face of the current change in teaching approaches in the post COVID-19 environment. Furthermore, the paper describes the perceived challenges librarians and libraries may be confronted with in executing the embedded librarianship model with regard to online teaching and learning. The paper advocates that the identified challenges be addressed for the library to play a role in the evolving post-COVID adaptations in Nigerian universities.