Yes, you can use Petco gift cards at Chewy. However, note that the card terms and conditions may differ from store to store.
So be sure to read the terms and conditions before using your card.
In general, the terms and conditions for gift cards generally state that the card cannot be used for purchases outside of the gift card’s designated store or online at the card’s website. Some cards may also have a minimum purchase requirement.
Additionally, many stores will require that the card be used in conjunction with a participating bank account. So be sure to have the account information handy when using your card.
Finally, note that the expiration date on a Petco gift card is typically one year from the date of issue, unless otherwise noted.