A boy’s name of Dutch origin, the meaning of Constantijn is ‘constant'. The name has its roots in a Latin word, Cōstantīnus, which means ‘tenacious’, ‘steady’, or ‘standing still'. In Dutch, people named Constantijn are called Stijn for short like Constantijn or Augustijn. There are many Stijns all over the world. They have formed a community named Stijn Maar Fijn to connect with more Stijns. The community hosts a yearly event called FeStijn and owns a clothing line comprising sweaters, swimming trunks, and T-shirts.