A multiple entry visa allows you to enter a specific country more than one time. This service is valid till the certain amount of time provided by the embassy. Pakistan also allows a double entry or multiple entry e-visa for its visitors. You can conveniently apply for Pakistan visa online with multiple entries using the Online Visa System of Pakistan. Some categories of visas have been specified for the policy of multiple entry visas. For instance, US nationals on tourist visas are allowed to have a multiple entry visa for up to 5 years with the stay of 3 months maximum.