Plaid Pantry is a chain of privately-owned convenience stores based in Beaverton, Oregon, USA. Of one hundred seven locations, three are in the Seattle, Washington area, eight are near Salem, and the balance are in the Portland metropolitan area.

Plaid Pantries, Inc. traces its founding to 1960 by John Piacentini. The name refers to the plaid decoration originally on both the store buildings and the roadside pole signs.

Plaid Pantry can date its origins to Handy Pantry, a California company which built multiple stores in the Portland area, with the financial backing of Alpenrose Dairy.^{[citation needed]} Stores built from scratch by Handy Pantry/Alpenrose were under the Handy Pantry name; stores made by converting an existing structure were referred to as Speedy Mart.^{[citation needed]} In 1963, the Handy Pantry/Speedy Mart chain went into bankruptcy.^{[citation needed]} Alpenrose Dairy, as the major creditor, gained control of all the stores.

In 1960, John Piacentini decided to go into business for himself and opened his first store in east Portland, under the name John's One-Stop. He opened a few more stores and eventually was offered the opportunity to purchase the Handy Pantry/Speedy Mart chain with financial backing by Alpenrose Dairy.^{[citation needed]} Piacentini changed the name of all the stores to Plaid Pantry, and continue to stock Alpenrose Dairy products.