Pope Leo is the name of fourteen heads of the Catholic Church: Pope Leo I (the Great; saint; 440–461) Pope Leo II (saint; 682–683) Pope Leo III (saint; 795–816) Pope Leo IV (saint; 847–855) Pope Leo V (903) Pope Leo VI (928–929) Pope Leo VII (936–939) Pope Leo VIII (964–965) Pope Leo IX (saint; 1049–1054) Pope Leo X (1513–1521) Pope Leo XI (1605) Pope Leo XII (1823–1829) Pope Leo XIII (1878–1903) Pope Leo XIV (since 2025)