Knowledge redundancy is a powerful concept in understanding supply chain performance including supply chain value creation and competitive advantage. This paper argues that knowledge redundancy is not about "redundancy" that might suggest a waste or duplication of knowledge. In contrast, knowledge redundancy between adjacent members of the supply chain is critical to superior supply chain performance. The paper examines the tacit and explicit nature of knowledge and knowledge redundancy in supply chains. It develops a conceptual model and a series of propositions that argue that managing knowledge redundancy in the context of supplierrelated factors, firm-related factors, and interface-related factors can bring positive supply chain performance outcomes.