Glossary/Retail Media & Commerce/Amazon Standard Identification Number (ASIN)
Retail Media & Commerce
Amazon Standard Identification Number (ASIN)
A unique 10-character identifier Amazon assigns to each product listed in its catalog.
By Brandon Mina·CEO, BrandPilot AI·Updated November 2026
Short answer
An Amazon Standard Identification Number (ASIN) is a unique 10-character alphanumeric identifier Amazon assigns to each product in its catalog. Multiple sellers can list offers on the same ASIN. Sellers and advertisers use ASINs to manage listings, target products in Sponsored Products campaigns, and track sales and performance across Amazon's marketplace.