The leone is the currency of Sierra Leone. It is subdivided into 100 cents. The ISO 4217 code is SLL and the leone is abbreviated as Le placed before the amount.

The leone was introduced on 4 August 1964. It replaced the British West African pound at a rate of 1 pound = 2 leones (i.e., 1 leone = 10 shillings).

For an earlier Sierra Leone currency, see Sierra Leonean dollar.