De Roo
De Roo is a Dutch surname meaning "the red one". It is often concatenated to DeRoo in French and West Flanders.
People with this surname include:
;De Roo
- Alain De Roo, Belgian racing cyclist
- , Dutch politician
- Benjamin de Roo, Dutch-born Australian gymnast
- , Belgian nobility, politician, and magistrate
- Jo de Roo, Dutch road racing cyclist
- Joseph De Roo, Belgian translator of Japanese
- Peter de Roo, Dutch footballer
- Remi De Roo, Canadian Roman Catholic bishop
- , Belgian actress
;DeRoo
