Abstract Background Inflammatory Bowel Diseases (IBD) are long-term conditions requiring lifelong access to, and interactions with health services. Accumulating evidence of inequalities in health care access, experience and outcomes for individuals with IBD is apparent. However there is no existing review that systematically maps these inequalities.The purpose of this review was to map and describe the inequalities in healthcare access, experiences, and outcomes of care for adults with IBD, to identify research gaps and future research priorities in this area. Methods A scoping review was conducted to retrieve quantitative, qualitative, and mixed methods evidence from three electronic databases (EMBASE, Medline and CINAHL). English written articles published between 2000 and 2023 were systematically searched using a search strategy. The Joanna Briggs Institute protocol for scoping reviews was followed to perform data extraction and analysis. Results 1343 records were identified. 51 studies met the criteria for inclusion. Studies addressed ethnic disparities of healthcare (33/51), inequalities driven by socioeconomic differences (12/51), rurality (7/51), gender (3/51), age (2/51), culture (2/51), literacy (1/51) and sexuality (1/51). The interrelationship of disparities relating to outcome, access and experience is illustrated in Figure 1. Poorer health outcomes (42/51 studies) were described in those from Black, Asian, and Hispanic ethnic groups in relation to hospital admission, readmission, emergency room attendance, length of stay, IBD-related complications, post-operative complications, treatment delay and length of stay. Deprivation, insurance status in US populations, rural location and age also affected outcome. Access inequalities (24/51 studies) were described to services, therapies and surgery but also to educational opportunities. Poor experience of care (8/51 studies) included appointment issues, lack of cultural understanding and fragmented care. A lack of research was found in the LGBTQIA+ community (1/51). No research was found to investigate inequalities in IBD patients with learning disabilities or autism. Conclusion Inequality affecting a wide range of population characteristics affects outcomes, access and experience in IBD care. Services need to be organised and delivered in a way that addresses this. Further research, including qualitative methods, is particularly needed to understand health experiences of underserved patient populations with IBD. The lack of research amongst LGBTQIA+ individuals, and with learning disabilities, poses a risk of creating inequalities within inequalities.