Nikolai Kummits was an Estonian painter.

Nikolai Kummits was born in Ülejõe agul in Tartu. He took part in both World War I and the War of Independence. After graduating from the Higher Art School in Pallas in 1929, Kummits peacefully assimilated into the same environment. Without ever visiting European art centres, his genre paintings developed a mild colourism that differed from the general orientation of Pallas.

On 26 May 1943, the German occupation authorities arrested Kummits at 25 Jaama Street in Tartu. The following year he died in Tallinn Central Prison.