Hello again,
I just wondered if some could confirm this for me - can the non-immigrant O visa be acquired for visiting a fiancé or does 'spouse' mean specifically husband or wife?
Thanks!
TLDR : Answer Summary
The Non-Immigrant O Visa in Thailand is specifically for spouses, which typically means legally married partners. If you are not yet married, you could consider obtaining a 60-day single entry tourist visa, which can be extended for an additional 30 days once in Thailand, allowing you to stay for a total of 90 days.