The Groenburgwal (Dutch pronunciation: [ˈɣrumˌbʏr(ə)xʋɑl]) is a canal in Amsterdam that connects the Raamgracht with the Amstel.
The area between the Kloveniersburgwal and the Zwanenburgwal was until late in the 16th century "the site outside the fortress at the Amstel".
After fulling and dyeing the cloth was tensioned on wooden frames to dry and stretch.
The names of the nearby Raamgracht, the Raamsloot near Rusland, dug in 1537, and the Verversstraat (1593) recall those activities.
Around that time the name Groenburgwal was born; green dyers were specially established here.