| De Ruiter - Freddy de Ruiter (born 1969), Norwegian politician
- Job de Ruiter (1930–2015), Dutch politician
- John de Ruiter (born 1959), Canadian philosopher
- Jorrit de Ruiter (born 1986), Dutch badminton player
- Lo de Ruiter (1919–2008), Dutch politician
- Niels de Ruiter (born 1983), Dutch darts player
- Nol de Ruiter (born 1940), Dutch football player and coach
- Piet de Ruiter (1939–2014), Dutch politician
- Roy de Ruiter (born 1989), Dutch football player
- Wesley de Ruiter (born 1986), Dutch footballer
- Wietske de Ruiter (born 1970), Dutch field hockey player
- Danielle de Ruiter (born 1998), Canadian Softball player and coach
- Hubert Arie De Ruiter Dutch born Canadian success story
De Ruijter - Bert de Ruijter (born 1952), Dutch blues musician known as "Leigh Blond"
- Frits de Ruijter (1917–2012), Dutch middle-distance runner
| De Ruyter - Engel de Ruyter (1649–1683), Dutch vice-admiral
- Michiel de Ruyter (1607–1676), Dutch admiral and naval hero
- Stephnie de Ruyter, New Zealand politician
- Wim de Ruyter (1918–1995), Dutch racing cyclist
- André de Ruyter (born 1968), South African business executive.
Deruyter Ruiter - Bert Ruiter (born 1946), Dutch bass guitarist, record producer, and composer
- Jan Ruiter (born 1946), Dutch football goalkeeper
- Robbin Ruiter (born 1987), Dutch football goalkeeper
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