Can I apply for a retirement visa in Thailand from a country other than my origin?

Okay, how about we stick to the question asked by the O/P?

She specifically asked: Is the only place I can get a retirement visa my country of origin?

Let's use her question to suss out what she means by "retirement visa" :O She is obviously referring to a year-long, multi-entry Non-Immigrant Type O-A (Long Stay) visa <- the one you get in YOUR country before you come here.

The answer to her question would be; you can apply for an O-A visa from a thai consulate in your country OR a country you legally hold residence in <- that does NOT mean one you are visiting but means one that you LIVE in and have a long term visa/extension etc from.

So no, just vacationing in Europe isn't gonna let you get an O-A visa from ANY thai consulate there.

We're done Thanx all :)

Is it not 65,000 THB per month ?

You can come on a tourist visa or visa exempt entry. Convert that to 90 day non-O retirement. You will need the ฿800K in Thai bank, or possibly can use verified retirement income ฿60,000/month, verification of residence from embassy or immigration, condo or house contract, but no medical or police check. They will hold for 2 weeks consideration, may visit your home. Then when it’s near to 90 days, and your money has been in Thai bank for 60 days, you go to immigration and get 1 year extension, with 90 days reporting needed, and re-entry permits if you leave Thailand during your stay.

Maybe strange but I read yesterday on a different Facebook page: US citizen went to the US Embassy in KL, got the income affidavit from them. Used this for his Extension of Stay application in Krabi and got approved without questions.

I checked the website of the Thai Embassy in Rome, Point 3 of the requirements for the Non Immigrant O-A visa is a Residence Permit.

It all depends on which of the 4 visa's based on being over 50 years of age, you call a "retirement visa".