This chapter discusses arbitration as an alternative to litigation for resolving reinsurance disputes. It notes that arbitration has a long history and is now commonly used in the reinsurance industry. The chapter reviews some key advantages and disadvantages of arbitration compared to litigation, including reduced formality, confidentiality, discovery flexibility, and appeal limitations. It also examines relevant US and international laws governing arbitration and typical processes for initiating, conducting, and enforcing arbitration of reinsurance claims.