How can I apply for a multiple-entry tourist visa for Thailand from the embassy in Washington?

All visas are applied for on the Thai E-visa website.



You would apply and use the options I've shown in the attached photo if you want a multiple entry tourist visa.

But do be aware of 2 things:

1) An METV is only useful in certain situations now. Visa exempt entries are 60 days which is the same number of days a tourist visa allows, so unless you have a specific need for a multiple entry tourist visa, using visa exempt is easy and free.

2) To apply for a METV you must prove why you need multiple entries. This means uploading a plane ticket into Thailand, a plane ticket out of Thailand within 60 days, and then another ticket into Thailand after that. Without proving that you will be entering Thailand multiple times, they will issue you a single entry and not refund the difference in price.