This multi-center, observational study will evaluate the clinical practice patterns, efficacy and safety of RoActemra/Actemra in patients with rheumatoid arthritis who have had an inadequate response (or were intolerant to) treatment with non-biological DMARDs or with one biological agent. Data will be collected from each eligible patient initiated on RoActemra/Actemra treatment by their treating physician according to approved label for 6 months from start of treatment.