Should I apply for a visa from my country or my Thai spouse's country when traveling together?

When applying for a visa to visit another country, you need to submit separate applications based on your individual passports, regardless of your marital status. It's essential to check the specific requirements of the embassy of the country you wish to visit, as some jurisdictions may have unique rules. Generally, you can apply from your current country of residence, which in this case would likely be Thailand, but check the embassy guidelines for detailed requirements and whether additional documents like marriage certificates are needed.