Nikoláy Aslánovich Pirosmanashvíli (Georgian: ნიკოლოზ ფიროსმანაშვილი) or Niko Pirosmani (Georgian: ნიკო ფიროსმანი), simply referred to as Nikala (ნიკალა Nik’ala; 1862–1918), was a Georgian painter who posthumously rose to prominence. Relatively poor for most of his life, he worked a variety of ordinary jobs. His rustic, everyday scenes are celebrated today for their depiction of the Georgia of Pirosmani's lifetime, and he has become one of the country's most beloved artistic figures.

Niko Pirosmani is alleged to be the inspiration for the male protagonist portrayed in the Russian song Million Roses.

Pirosmani was born in the Georgian village of Mirzaani to a peasant family in modern-day Kakheti province. His parents, Aslan Pirosmanashvili and Tekle Toklikishvili, were farmers, who owned a small vineyard, with a few cows and oxen. He was later orphaned and left in the care of his two elder sisters, Mariam and Pepe. He moved with them to Tbilisi in 1870. In 1872, while living in a little apartment not far from Tbilisi railway station, he worked as a servant to wealthy families and learned to read and write Russian and Georgian. In 1876, he returned to Mirzaani and worked as a herdsman.

Pirosmani gradually taught himself to paint. One of his specialties was painting directly into black oilcloth. In 1882, with self-taught George Zaziashvili, he opened a painting workshop, where they made signboards. In 1890, he worked as a railroad conductor. In 1893, he co-founded a dairy farm in Tbilisi, which he left in 1901. Throughout his life, Pirosmani, who was poor, was willing to take ordinary jobs including housepainting and whitewashing buildings. He also worked for shopkeepers in Tbilisi, creating signboards, paintings, and portraits, according to their orders. Although his paintings had some local popularity (about 200 survive) his relationship with professional artists remained uneasy; making a living was always more important to him than aesthetic abstractions.

In April 1918, he died in the 1918 flu pandemic as a result of malnutrition and liver failure. He was buried at the Nino cemetery; the exact location was not registered and is unknown.

Pirosmani's paintings were influenced by the social conditions of his time and place. There are many works about merchants, shopkeepers, workmen, and noblemen groups. Pirosmani was fond of nature and rural life. He rarely employed city landscapes. He made many animal paintings. He was the only Georgian animalist. Pirosmani also was attracted by historical figures and themes such as Shota Rustaveli, King Tamar, Giorgi Saakadze, as well as ordinary Georgian people and their everyday lives.

Usually, Pirosmani painted on oilcloth. Unlike other artists, Niko didn't aim at a pure imitation of the nature and paid no attention to details. Some of his paintings are monochrome. His paintings demonstrate the author's sharp compositional consideration. Placements of the figures are frontal, while faces do not demonstrate a specific mood.

In the 1910s, he won the enthusiasm of the Russian poet Mikhail Le-Dantyu and the artist Kirill Zdanevich and his brother Ilia Zdanevich. Ilia Zhdanevich wrote a letter about Pirosmani to the newspaper Zakavkazskaia Rech, which it published on February 13, 1913. He undertook to publicise Pirosmani's painting in Moscow. The Moscow newspaper Moskovskaia Gazeta of 7 January wrote about the exhibition "Mishen" where self-taught painters exhibited, among them four works by Pirosmani: "Portrait of Zhdanevich", "Still Life", "Woman with a Beer Mug", and "The Roe". Critics writing later in the same newspaper were impressed with his talent.