The official language of Latvia is Latvian, which belongs to the Baltic language group of the Indo-European language family. Another notable language of Latvia is the nearly extinct Livonian language of the Baltic-Finnish sub branch of the Uralic language family, which enjoys protection by law; Latgalian language - a dialect of Latvian - is also protected by Latvian law as historical variation of Latvian language. Russian is by far the most widespread minority language.
Here you can find basic phrases in Latvian language:
And here are also many useful phrases, but you can translate them to any other language as well:
Useful may be this pronunciation guide: