I just went thru the list after I did the legal name change in US and got a new US passport. It was not a problem. I was told by my bank manager that in Thailand people also change their names a lot! Starting with bank accounts, then land office condo registration, drivers licenses, 3bb, etc. Even changed my name on The One Card.
To amend officially my condo Chanote I had to go to the US Consulate and swear an affidavit in English, and get an official Thai translation to present to the land office
Copies of that were helpful with other offices and institutions.