Dihau
Dihau is a surname. Notable people with this surname include:
- Désiré Dihau, French bassoonist and composer, brother of Marie and Henri
- Marie Dihau, French singer, pianist, and music teacher, sister of Désiré and Henri
- Henri Dihau, the subject of artist Henri de Toulouse-Lautrec, brother of Marie and Désiré