Karol Kirst (born January 7, 1885, in Łódź, died May 13, 1953, there) was a Polish lawyer, trade union activist and politician who served as Voivode of Białystok Voivodeship in the years 1927–1930.

He was born on January 7, 1885, in Łódź, to Edward and Natalia née Olex-Majewski.

[2] After completing his studies, he was a trainee at the District Court in Warsaw, from 1912 an assistant to a sworn attorney, then a sworn attorney in Odessa and a legal adviser to the Russian Shipping and Trade Association in Odessa.

[1] From 1918 he was a justice of the peace in Lipno, a clerk and adviser in the Ministry of Labor and Social Welfare, an adviser and head of a department in the Ministry of Justice, in the years 1918–1919 in the Secretariat of the Trade Union of Agricultural Workers of the Republic of Poland.

From November 24, 1927, to July 10, 1930, he served as the Voivode of Białystok Voivodeship, then a prosecutor, and from February 14, 1934, a judge of the Supreme Court of Poland.