- Qty is defined as an abbreviation for "quantity" and means the number or amount of something.
When you want to order three reams of paper, this is an example of where you would write on the order sheet "Qty: 3."
qty definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
qty definition by American Heritage Dictionary