Klaas de Boer
Klaas de Boer is the name of the following people:
- Klaas de Boer (astronomer) (* 1941), Dutch astronomer and astrophysicist
- Klaas de Boer (politician) (* 1928), politician and former mayor of [[Hardinxveld]
- Klaas de Boer Czn. (1852–1936), Knight of the Order of the Dutch Lion ]