The vice-president of Sierra Leone is the second most senior government official in the executive branch of the Republic of Sierra Leone government after the president. The vice-president's only constitutional power is to be the immediate successor to the president of Sierra Leone if the president resigned or is removed from office by the parliament. Other than that the power of the vice president depends on the role delegated to the office by the president.

The president of the Republic of Sierra Leone is the head of state and the head of government of Sierra Leone, as well as the commander-in-chief of the Armed Forces.