This study investigated the Awareness and Utilisation of Online Communities of Practice for knowledge sharing among Practicing Midwives in Katsina State. In order to achieve this objective, five (5) research questions and three (3) null hypotheses were formulated. A cross sectional survey design was employed to conduct the study. The population of the study comprised of all the hospitals under Katsina State Health Service Management Board. Out of the twenty (20) hospitals, eight (8) hospitals were selected using stratified sampling procedure. An open and close-ended questionnaire was administered to 180 Midwives in the hospitals selected with a total of 113 (62.7%) copies returned. The data collected for the study were presented and analyzed using both descriptive statistics and inferential statistics. It was discovered that, majority of the Midwives in Katsina State hospitals are aware of the existence of Katsina nurses forum (Facebook) and it is being utilize for knowledge sharing, whereas all the Midwives in Katsina State are not aware of the existence of Global Online Communities of Practice for knowledge sharing due to lack of awareness, lack of trust, Workplace acceptance and support, Lack of internet access, Lack of active participation of members, Lack of time, and slow internet speed. It was found that, networking with peers, user friendly and multi media oriented, and professional development were the reasons for utilisation of Online Communities of Practice for knowledge sharing. The study recommends the design of awareness campaign programs, formulation of policies that support the use of Online Communities of Practice for knowledge sharing, use of consultancy services to mount training, and creation of local platforms using social networking sites across all the Hospitals to sensitize, motivate, and encourage the Midwives in Katsina State Hospitals to embrace the use of both local and global Online Communities of Practice for knowledge sharing