Kārlis Rūdolfs Leonīds Blaumanis (1 January 1863 – 4 September 1908) was a Latvian writer, journalist and playwright.

First publication – a story Wiedergefunden was published in 1882 in [German language] newspaper Zeitung für Stadt und Land.

In 1889, he moved to Riga and after two years started to work in editorial office of Zeitung für Stadt und Land where he wrote about Latvian cultural life.

After father's death in 1894 he again lived in Braki homestead in his native Ērgļi parish for four years and tried to become a farmer.

Later he briefly worked in the New Current's main newspaper Dienas Lapa where he published satire against romanticism.

In 1898 he returned to Riga and together with Aspazija and Jānis Poruks worked in one of the biggest journal (home guest]] In 1900 he together with his friend Andrievs Niedra published collection of poetry.

However, several fellow Latvian writers started a fundraising campaign and in late summer with the help of painters J. Rozentals Finnish wife Blaumanis was able to go to Finland.