Is my thai marriage legal in the uk?

dunno
Yes it is.... even jumping a broomstick is if it is carried out with all the natural rights and consents, but do go and register with the local registrars of Births, Deaths and Marriages.
Nothing to fear here but fear itself.
yes it is good luck on your marriage
Yes it is valid.
Provided that you have notified your embassy while in Thailand and received the go ahead clearance.

You also need to get the Thai marriage certificate translated and certified it with your marriage council or department of your country.As well as with your country immigration if you have married a foreigner.


Answer:
If you register the Thai marriage with the UK embassy, then yes.
This question comes up a lot. Surely you should find out about this BEFORE you get married.
As long as the marriage is valid in Thailand it is recognized in the UK.
I do suggest that you have the officially translated marriage certificate registered in the GRO in the UK.
From the British Embassy web site in Bangkok:

* The British Embassy in Bangkok is not authorised to perform marriages.
* Marriage in Thailand should be performed according to Thai law and any detailed questions on the procedure should be addressed to the appropriate Thai authorities.
* A religious ceremony on its own is not sufficient.
* The documentation to be produced is at the discretion of each individual Registrar. Most Registrars will be satisfied with an affirmation of freedom to marry.
* The marriage will only be recognised under UK law if it is valid under Thai law. For it to be valid in Thai law, the marriage must be registered with the Registrar at an Amphur Office (District Office). A list of some Amphur offices in Bangkok and upcountry is attached.
* The Thai marriage certificate will be in Thai only. You may wish to commission a “sworn translation” of the marriage certificate from a translation bureau, so that you may use the document for legal purposes in the UK.
* Consular Section can arrange for your marriage to be recorded in the UK; please ask us for further details if you wish us to do so. This is not a legal obligation, it is for statistical purposes and if you lose a copy of your certificate only.
* Please note that a foreign national does not automatically acquire British nationality through marriage to a British national.
* If you are marrying a Thai national, he or she will require a visa to visit or settle in the UK.
* Applications for a visa to settle in the United Kingdom should be submitted at least three months in advance of the proposed date of travel. Please ask the Visa Section for further information.

http://www.britishembassy.gov.uk/servlet...