The opponens digiti minimi is a hypothenar muscle located within the hand. It lies deep to the other hypothenar muscles.
- Attachments: Originates from the hook of hamate and associated flexor retinaculum. Inserts onto the medial margin of the fifth metacarpal
- Actions: Opposition of the little finger
- Innervation: Ulnar nerve.
- Blood supply: Deep palmar arch
