Post-nominal letters

All you want to know about Post-nominal letters

Post-nominal letters, also called "post-nominal initials" or "post-nominal titles", are letters placed after the name of a person to indicate that the individual holds a position, educational degree, accreditation, office, or honour. An individual may use several different sets of post-nominal letters. The order in which these are listed after a name is based on the order of precedence and category of the order.

Examples of post-nominal letters:

A Knight Commander of the Order of the British Empire is authorized to use the postnominal KBE.
A Fellow of the American Institute of Architects is authorized to used the postnominal FAIA.
A Doctor of Philosophy is authorized to use the postnominal PhD (or, in some cases, DPhil).
A Franciscan friar (the Order of Friars Minor) is authorized to use the postnominal OFM.

Post-nominal letters are one of the main types of name suffix.