Background: Studies have suggested that patients with inflammatory bowel disease (IBD) have an increased risk of rheumatoid arthritis (RA). However, the available data on this association are inconsistent. This meta-analysis aimed to determine the association between IBD and the risk of RA. Methods: Observational studies investigating the RA risk among patients with IBD (Crohn disease (CD) and/or ulcerative colitis (UC)) were searched in PubMed, Embase, and Web of Science from the date of inception to December 2019 . The methodological quality of the included studies was assessed using the Newcastle-Ottawa Scale. Relative risks (RRs) and corresponding 95% confidential intervals (CIs) were pooled with a random-effects model. Heterogeneity was evaluated using I 2 statistics while publication bias was determined using Begg’s and Egger’s tests. Subgroup and sensitivity analyses were performed. Results: A total of three cohort studies, three cross-sectional studies, and two case-control study were included in the meta-analyses. Compared to the non-IBD control or general population, there was a significantly higher risk of RA among patients with IBD (RR=2.59; 95% CI: 1.93–3.48). Moreover, both CD (RR=3.14; 95% CI: 2.46–4.01) and UC (RR=2.29; 95% CI: 1.76–2.97) were associated with a significantly increased risk of RA . However, heterogeneity was substantial across studies and the subgroup analyses failed to identify the potential source of heterogeneity. Conclusions: Patients with IBD have a greater risk of developing RA. Rheumatologists should be consulted when patients with IBD present with undifferentiated joint complaints. However, more prospective cohort studies are needed to validate these results.