"What Do I Know" is a song by Ricochet from their self-titled debut album.

What Do I Know may also refer to:

"What Do I Know?", a song by Ed Sheeran from the album ÷ "What Do I Know", a song by Sara Groves from the album Conversations

See also " " (What do I know?), the personal motto of French philosopher Michel de Montaigne Que sais-je?, a French book series