The personal flag of King Maha Vajiralongkorn, with his initials M.V.K. (ม.ว.ก.) and the red yan-sign above it fashioned with the Thai number ten (๑๐), representing his crown title Rama X.

Whereas the flag (fig.) and colours of the initials are similar to those of his father (fig.), the blue is sometimes of a lighter tinge.