BACKGROUND AND OBJECTIVE: Janus kinase (JAK) inhibitors (JAKinibs) are effective for inflammatory bowel disease (IBD), but their cardiovascular safety is inconclusive. We aim to assess the cardiovascular risks associated with JAKinibs in IBD patients. PATIENTS AND METHODS: Systematic searches of seven databases and ClinicalTrials.gov from inception to February 2024 were conducted. Outcomes included major adverse cardiovascular events (MACE), venous thromboembolism events (VTE) and cardiovascular events (CVE), which were separately evaluated based on whether or not the dose was considered. P-score was applied to rank interventions. RESULTS: A total of 26 trials involving 10,537 IBD patients were included, and results showed no significantly increased risk of MACE, VTE and CVE was associated with JAKinibs. However, when the dose was considered, Tofacitinib 5 mg BID (versus placebo) showed a trend towards an increased risk of MACE [odds ratio (OR)=1.05, 95% confidence interval (CI): 0.23-4.82], as well as Upadacitinib 30 mg QD (versus placebo) showed a trend towards increased risks of VTE (OR=1.36, 95% CI: 0.23-8.03) and CVE (OR=1.08, 95% CI: 0.24-4.85), and ranked higher than placebo for the risk of VTE [P-score=0.766 (versus 0.722)]. Notably, Deucravacitinib ranked lowest for all cardiovascular risks, and significantly decreased the risks of VTE (OR=0.03, 95% CI: 0.00-0.87) and CVE (OR=0.03, 95% CI: 0.00-0.87) compared with placebo. CONCLUSIONS: Although a trend of increased cardiovascular risks was found considering dose, no significantly increased cardiovascular risk was associated with JAKinibs in IBD patients, and Deucravacitinib significantly decreased the risks of VTE and CVE.