The Singelgracht (Dutch pronunciation: [ˈsɪŋəlˌɣrɑxt]) is a semi-circular waterway that borders the entire city centre of Amsterdam, Netherlands.

The name is related to the Dutch word omsingelen, "to surround", and comes ultimately from Latin cingulum, meaning "belt".

The names of the streets on the 'inside' of the semi-circular canal are: Marnixkade, Leidsekade, Nicolaas Witsenkade, Sarphatikade, Huddekade, Spinozastraat and Alexanderkade.

Parallel to the Singelgracht, on the inside of the ramparts was the Lijnbaansgracht situated, named after the ropeyards in this area.

The section of the Singelgracht between the Westerkanaal and the Rotterdammerbrug is part of the shipping connection (standing mast route) between the IJ and the Kattensloot / Kostverlorenvaart, with movable bridges on either side of the Willemspoort .