Abstract: Business processes manifest the business knowledge and related logics. As it becomes more common for organizations to describe their operations in terms of business processes, it is necessary to establish a Business Process Repository to manage thousands of process models while providing capabilities for effective sharing and reusing of valuable business and process related knowledge. Even though there are number of repositories exist to store process models, the heterogeneity of current process repositories makes it difficult to relate and share process knowledge across them. A survey of existing business process repositories has been reported here by reviewing number of available process repositories and the existing literature. Analyzing the principles on which development of these repositories are based, a comparison is made to identify the strengths and shortcomings. Founding on these principles, a number of essential properties that a successful process repository solution should possess are proposed as to support process repositories development efforts. Consequently, such a repository would become a common information asset to all business users and especially facilitate reuse over different business domains while enhancing assuring sharing and reuse business process knowledge.