Aims: To examine the experiences of inter-professional collaboration of maternity service providers in the Netherlands and to identify potential enhancing and inhibiting factors for interprofessional collaboration within maternity care in the Netherlands. Background: Good collaboration between health care professionals is a key element of safe, effective care, but creating a collaborative culture can be challenging. Good collaboration requires, among other things, negotiating different professional orientations and the organizational constraints of hierarchies and scheduling. Good collaboration is especially important in maternity care. In the Netherlands, suboptimal collaboration has been cited as a significant factor in maternal deaths and in adverse incidents occurring in hospitals during evenings, nights, and weekends. In spite of its importance for effective maternity care, little is known about the nature and quality of collaboration between maternity care professionals. In order to fill this gap, we examined the inter-professional collaboration within multi-disciplinary teams (MDTs) providing maternity services in the Netherlands. Methods: Online survey of MDTs (consisting of hospital and PCMs, doctors, and carers) involved in the provision of maternity services in the Netherlands. We used a validated measure of collaboration (the Leiden Quality of Work Questionnaire) to analyze the attitudes of those involved in the provision of maternity services about multi-disciplinary collaboration in their work. We used descriptive and inferential statistics to assess differences between the groups. Results: 40% of all respondents were not satisfied with collaboration within their MDT. Overall, mean collaboration scores (MCS) were low. We found significant differences in MCS between professional groups. Midwives – community and hospital based – were pessimistic about collaboration in future models of maternity care. Discussion: In the Netherlands, collaboration in maternity care is less than optimal. Poor ...