Hermanus Koekkoek
Hermanus Koekkoek is the name of the following people:
- Hermanus Koekkoek the Elder (1815–1882), Dutch painter
- Hermanus Koekkoek the Younger (1836–1909), Dutch painter and art dealer
- Hermanus Willem Koekkoek (1867–1929), Dutch painter, draftsman, watercolorist and illustrator
