The Waterpoort in Sneek is a water gate, a gate in a defensive wall that connects a city to a waterway. In the 15th and 16th century, a defensive wall had been built around Sneek.
The city lay on the important trade route between Leeuwarden and Stavoren, from which the rich western parts of the Netherlands (now North Holland and South Holland) could be reached. To facilitate this trade, a new harbour called the "Kolk" was built to the southwest of the city and in 1613 the Waterpoort was erected to connect city and harbour. It formed part of the city walls, but when large parts of these were demolished in the early 18th century, it was decided to leave the Waterpoort intact.