* English: This is a given, as he was born and raised in Nova Scotia, Canada, and served as Prime Minister of Canada.
* French: It's likely Tupper had at least a basic understanding of French, as French was (and still is) a significant language in Canada. He served in the government during a time when French-English relations were crucial.
* Latin: Tupper was educated in the classical tradition, so he likely studied Latin, a common language of scholarship in the 19th century.
It's unlikely that he spoke any other languages fluently.