Originally Posted by Wasp
Can she keep her Thai identity in all her documentation for Thailand and have a different name for the UK Passport ?
Yes, easily done in the UK.
Just change her name by deed poll to her English name and apply for the British passport.Enclose the deed poll certificate which you can print off on line and get signed by a civil servant. https://www.gov.uk/change-name-deed-...dult-deed-poll
Keep all the Thai stuff separate, if they are happy doing that.