Athena, the goddess of wisdom, courage, inspiration,
civilization, warfare, strength, strategy, female arts, crafts,
justice and skill is often accompanied by a Little Owl (Athene
noctua).
This little guy was so popular he made it onto the Athenian
currency, the silver tetradrachm, in 2 BC.
Alas, I have not heard of Athena having a Leopard companion.