Is Latin considered a holy language in the Catholic Church? I've heard that many Roman Catholic Churches still hold Mass services and particularly ceremonies (e.g. weddings) in Latin. Is this true, and if so why is Latin considered to be a better language than the native language(s) of the region in which the church is in?
Yes, prior to the promulgation of the Novus Ordo Mass finished by 1970, Latin was the language used at Mass throughout the world.  The change to the vernacular didn't change the official language of the Catholic Church which is Latin.
Many parts of the Mass are still (or can be) proclaimed in Latin.  If you've got some time, watch or listen to the Mass on EWTN.  I think there's a lot more Latin in that Mass than there is in the average town's parish.  I think there are at least two reasons for that:

It is beautiful

They've got a handful of priests who are familiar with the language.


Beyond that, it was obviously the desire of Mother Angelica to have a more traditional (and therefore holy, beautiful and sacred) liturgy.  But it doesn't make it more &quot;meaningful&quot;; Christ isn't less present at Masses proclaimed in the vernacular.

In 2007, Pope Benedict XVI issued a Motu Proprio Summorum Pontificum (only in Latin) in which he said that it was OK by him if people used the old Roman Missal (only in Latin), which incidentally is less than 10 years older than the new one, for their Mass.   This lifted the responsibility from the Bishops to say yes or no and made a few Traditional Catholic groups happy.
But he made it clear that this is the &quot;Extraordinary Form&quot; of the Mass, not the Ordinary one.  And, every time you hear the word &quot;Extraordinary&quot; in the Catholic Church, it indicates something that is not really necessary for salvation in general, but good for some circumstances.  (Extraordinary Ministers of Communion, Extraordinary means of Baptism, etc...)

It's not more holy, in the sense that it is &quot;special in God's eyes&quot;. But it certainly is more holy in the traditional sense of the word &quot;set apart&quot;, more so today than in the hey day of the Holy Roman Empire.
But, it is the official language of the Church and as long as the Pope is in Rome, it always will be:

The Latin language has always been held in very high esteem by the Catholic Church and by the Roman Pontiffs.
Pope Benedict XVI - Latina Lingua