Reinis Kaudzīte (Old orthography: Reinis Kaudsit; May 12, 1839 – August 21, 1920), was a Latvian schoolteacher and writer.

[1] His novel Mērnieku laiki ("Time of the Surveyors") was the first novel written in Latvian, co-authored with his brother Matīss Kaudzīte in 1879.

[2] Reinis Kaudzīte was born in "Mādari", Vecpiebalga Parish, in the heart of Vidzeme.

He had not attended the school himself but became a teacher of geography and religion classes in Kalna Kaibēni parish school at the age of 28.