I am a UK citizen getting married to a Thai citizen. We are getting married in Thailand however we plan to live in the United Kingdom afterwards. Does anyone know what the processing time is for a spouse visa? Also how do I register a marriage in Thailand?
Any help is appreciated. Thank you.

Getting married in Thailand is explained here:
Processing times for a UK Spouse Visa varies. Contact a local attorney to check what they believe the processing time is for a UK Spouse Visa in Thailand. The British Embassy in Bangkok has outsourced their application process.
Best of luck with your Spouse Visa!