Seven hairs
Siebenhaar is the family name of the following people:
- Beat Siebenhaar (* 1962), Swiss linguist and dialectologist
 - Eduard Siebenhaar (1806-1893), German lawyer
 - Hans-Peter Siebenhaar (* 1962), German author
 - Klaus Siebenhaar (* 1952), German literary scholar, publisher and cultural manager
 - Kurt Siebenhaar (1928–2009), German national basketball player
 - Michael Adolf Siebenhaar (1691–1751), German draftsman and painter
 - Malachias Siebenhaar (1616–1685), German composer
 
also:
- Trolle Siebenhaar , Danish music duo