Keilhau
Keilhau is a surname. Notable people with the surname include:
- Carl Keilhau, Norwegian journalist and poet
- Hans Vilhelm Keilhau, Norwegian artillery officer and politician
- Louise Keilhau, Norwegian teacher and peace activist
- Wilhelm Keilhau, Norwegian historian and economist
- Wollert Keilhau, Norwegian librarian and encyclopedist