The Sicherheitspolizei was a term used in Nazi Germany to described the combined forces of the Gestapo and Sicherheitsdients (the SD) between 1934 and 1939. The term originated in after the SS absorbed the Prussian Secret Police (predecessor of the Gestapo) and the Gestapo and SD were placed under the central command of Reinhard Heydrich. In practive, however, the Gestapo and SD frequently came into jurisdictional conflict with eachother, due in large part that Heinrich Muller, head of the Gestapo, found the SD an incompetent agency.

In 1936, with the creation of the Ordnungspolizei and the Kriminalpolizei, the Sicherheitspolizei became the top tier of a three level state police force. The three branches were commonly known as the Sipo, Kripo, and Orpo.

In 1939, with the founding of the Reichssicherheitshauptamt (RSHA), the Sicherheitspolizei as a functioning office ceased to exist. The term survived in common usage, however, until the end of the Second World War. The phrase also appeared in East Germany to describe the East German secret police forces, considered by many to be direct successors to Nazi agencies such as the Gestapo and SD.