Digital libraries are emerging concepts in Nigeria, and digital literacy is a necessary tool or skill needed in making use of resources in the digital library. Most Nigerian libraries are faced with challenges in library usage and services due to inadequate literacy and digital skills required to make maximum use of digital library. This in turn has led to digital divide among both users and staff. Libraries owe it to their users, to make information accessible to all, irrespective of their locations, languages and literacy levels, as libraries support all forms of literacies from basic to digital. How then, can all these be made possible if users are not digitally literate?. The study hope to bring to light the essence of digital literacy in digital libraries, consequence of not being digital literate, and ways libraries can promote digital literacy. The study employed qualitative approach as research design. The researcher searched online journal articles, databases and looked at various studies carried on digital literacy, the importance, digital libraries, implication of digital literacy in libraries and ways libraries can promote digital literacies in their libraries with focus on Nigeria and proffered solutions for tackling the menace of digital divide to digital libraries and to the society generally.