Lateral sided snapping elbow is an unusual condition, and it is apt to be misdiagnosed as lateral epicondylitis. The causes of lateral sided snapping elbow have been attributed to intraarticular loose bodies, instability, synovial plicae and torn annular ligament. We report our experiences for treating lateral sided snapping elbow caused by a meniscus in the radio-humeral joint. In the present cases, the cause of snapping was detected using double contrast arthrogram under fluoroscopic control, and histology revealed that it was a meniscus. Complete removal of the meniscus allowed immediate relief of the symptom, and there was no recurrence in both cases.