Some of the most popular international gift cards that can be used globally include Visa, Mastercard, and American Express gift cards. These cards can be used at any retailer that accepts the corresponding credit card, making them a convenient option for your recipients. Additionally, there are several retailers, such as Amazon or Apple, that offer their own gift cards with global redeemability. However, it is important to note that each country may have its own set of regulations and restrictions regarding the use of international gift cards, so it is recommended to do thorough research before choosing a specific card.