: The current research aims to identify the relationship between knowledge sharing and self-efficacy among a sample of doctors working at Al-Zahraa Teaching Hospital for maternity and child health / Najaf Governorate / Iraq, the sample was about 93 doctors, (41) male (52), female. They were grouped in this study according to their scientific degree to residents (36), specialists (47) and consultants (10). To measure the research variables, the scale prepared by De Vries, Den Hooff & De Ridder (2006) was used. Knowledge sharing measurement and its psychometric properties were then calculated. The reliability of the Cronbach method was (0.74), and the reliability of the self-efficacy scale prepared by Turan et al. (2013) was (0.84). The results showed that there is a significant relationship between the sharing of knowledge and self-efficacy of the doctors of all study groups.