This sounds like a fun question, but as somebody who currently learns Latin asked me that, maybe there is indeed a Latin language pack for Ubuntu?
That is, all system UI elements and also to possible extent applications should be displayed in Latin.
SnapOverflow
No. The Latin language exists in Launchpad, but far too few strings have been translated yet to motivate the creation of Latin language packs.
You may want to join the Decuria latinitatis team and help with the translation into Latin.