Global retail systems involve complex supply chains spanning manufacturers, distributors, logistics partners, customs authorities, and retailers across multiple nations. This complexity introduces opacity in sourcing, authenticity verification, labor ethics, environmental impact, and pricing trails. Blockchain, with its immutable distributed ledger architecture, enables transparent tracking of product origin, ownership, movement, and compliance across borders. This study explores blockchain-enabled retail transparency in global commerce, using theoretical frameworks, implementation models, and hypothetical datasets. Findings suggest blockchain increases consumer trust, reduces fraud, enhances traceability, and improves sustainability reporting. However, challenges include interoperability, data accuracy, regulatory constraints, and cost of stakeholder adoption. A multi-layer blockchain retail transparency model is proposed.