The paper examines the information needs and seeking behaviour of lawyers in Lagos, Nigeria. Results reveal that many lawyer is perceived the need to know the latest decisions of superior courts as their greatest professional information need. Other expressed needs include knowing recent legislation, obtaining information on local and international seminars and conferences, and on acquisition and application of legal “know-how”. The library has been identified as the most heavily consulted information source for job-related information. However, libraries do not fulfill their role in meeting the information needs of lawyers. Recommendations are made on the basis of the findings.