"Little Lion Man" is the debut single by English folk rock band Mumford & Sons.

It was released as the lead single from their debut studio album, Sigh No More, on 11 August 2009 in the United Kingdom.

The song had a positive commercial performance, charting in several countries and peaking within the top twenty in Australia, Belgium (Flanders), Ireland, and New Zealand.

Frontman Marcus Mumford has said about the song: It's a very personal story, so I won't elaborate upon too much.

In the US, "Little Lion Man" entered the Billboard Hot 100 chart dated 28 August 2010, when it debuted at No.

It would be the last song released by a British act to top the list until 2020, when Glass Animals won with "Heat Waves".