What does GBE mean after someone's name?

It stands for Knight (or Dame) Grand Cross in The Most Excellent Order of the British Empire. It is one of the highest honors a citizen of Great Britain can obtain. It is a knighthood and entitles on to use Sir or Dame in front of their name. There are five levels in the Order and this the highest.
It stands for Knight (or Dame) Grand Cross in The Most Excellent Order of the British Empire. It is one of the highest honors a citizen of Great Britain can obtain. It is a knighthood and entitles on to use Sir or Dame in front of their name. There are five levels in the Order and this the highest.