Methods, systems, and computer readable media for suppressing cookie based advertisement retargeting are disclosed. One method includes receiving a digital identifier and a merchant identifier associated with a purchase transaction. The method further includes determining, using the digital identifier and the merchant identifier, whether a cookie exists for advertisement retargeting related to the digital identifier and the merchant identifier. The method also includes in response to determining that the cookie exists for advertisement retargeting related to the digital identifier and the merchant identifier, sending suppression information for suppressing advertisement retargeting associated with the cookie.