Jan Kubiš (24 June 1913 – 18 June 1942) was a Czech soldier, one of a team of Czechoslovak British-trained paratroopers sent to eliminate acting Reichsprotektor (Realm-Protector) of Bohemia and Moravia, SS-Obergruppenführer Reinhard Heydrich, in 1942 as part of Operation Anthropoid. During the assassination attempt, Kubiš threw a makeshift grenade that mortally wounded Heydrich.