Groen is a Belgian political party.
- Annemarie Groen (b. 1955), Dutch Olympic swimmer
- Bert Groen (contemporary), Dutch politician
- Els de Groen (b. 1949), Dutch politician and Member of the European Parliament
- Lou Groen (contemporary), American restaurateur, inventor of the Filet-O-Fish sandwich
- Richard de Groen (b. 1962), New Zealand cricketer
- Sander Groen (b. 1968), Dutch professional tennis player
- Sara Groen (b. 1981), Australian actress and television presenter