Cuypers
Cuypers is a variation of the Dutch surname Kuipers and, has the same meaning as the English surname Cooper or Coopers.
People with this surname include:
2010 ATP Studena Croatia Open Umag – Doubles
František Čermák and Michal Mertiňák unsuccessfully defended their title, after lost to Leoš Friedl and Filip Polášek in the final 3 – 6, 6–7.
2019 China Open – Men's Doubles
Ivan Dodig and Filip Polášek won the tournament by defeating the defending champions Łukasz Kubot and Marcelo Melo in the final, 6 − 3, 7 − 6.
2009 Allianz Suisse Open Gstaad – Doubles
Jaroslav Levinský and Filip Polášek were the defending champions, but lost in the final to Marco Chiudinelli and Michael Lammer, 7 – 5, 6–3.
2009 Aegon International – Men's Doubles
This was the first edition of the men's doubles event at Eastbourne.
Mariusz Fyrstenberg and Marcin Matkowski defeated Travis Parrott and Filip Polášek 6- 4, 6- 4
René Kuipers
René Kuipers( born February 2, 1960) is a Dutch rally driver.
Aan tafel
Aan tafel was a Belgian chat show TV series produced in the Dutch language in Belgium since 2001.
The series is directed by Ludovic Beun and Filip Bonze.
David Ji
David Longfen Ji is an American businessman who co-founded Apex Digital, an electronics manufacturer.
In 2004, he was arrested in China following a dispute with Sichuan Changhong Electric, a supplier owned by the city of Mianyang and the province of Sichuan.
Changhong accused him of defrauding them through bad checks.
Ji was taken, according to an account by his lawyer, to the senior management and told, "I decide whether you live or die."
He has been held in China without charges.
Ji's case highlighted an "implicit racism" in dealings with American businessmen.
As a U.S. citizen he was not granted the same treatment by authorities as non-ethnically Chinese businessmen sharing the same nationality.
Filip Novotný
Filip Novotný( born May 6, 1991) is a Czech professional ice hockey goaltender currently with HC Energie Karlovy Vary in the Czech Extraliga.
He made his professional debut during the 2010 – 11 Czech Extraliga season.
2009 American Express – TED Open – Doubles
Frederico Gil and Filip Prpic became the new champions, after defeating Grigor Dimitrov and Marsel İlhan 3 – 6, 6 – 2,[ 10 – 6] in the final.

Question: Were René Kuipers and Filip Novotný of the same nationality?
Answer: no