Kazimierz Włodzimierz Szempliński (7 January 1899 – 12 February 1971) was a Polish fencer, Army Major, resistance fighter and former prisoner of war. Szempliński competed in the team épée event at the 1936 Summer Olympics. From November 1919 he was a member of Polish Armed Forces. Szempliński fought in the Polish-Soviet War and then in the September Campaign of World War II. During the latter, he served in the Łódź Army and fought at Sieradz and Warsaw. Afterwards, he was held by the Germans in the Oflag II-C prisoner-of-war camp.