Is it better to bring US dollars or euros to Thailand?

Ted, the best idea would be to possess Thailand’s local currency - Thai baht, you’ll be able to exchange dollars or euros when you arrive, because there are plenty of currency exchange points in Thailand. However, I would recommend taking the money out of the cash machine: it will be safer and the exchange rate will be better. If you’re only interested in getting advice on whether to bring US dollars or euros, then I would suggest choosing dollars. Good luck!