Camac River looking south at Inchicore by "The Tramyard" development
|Origin||Mount Seskin, Slade of Saggart|
|Mouth||River Liffey at Heuston Station, ultimately Dublin Bay|
|River system||River Liffey|
|Left tributaries||Ferny Glinn, the Two Slades, Gallblack Stream (in turn Gallanstown and Blackditch Streams)|
|Right tributaries||Boherboy Stream (Corbally Slade River), Brownsbarn Stream, Fettercairn Stream, Robinhood Stream (Coolfan River), Drimnagh Castle (or Bluebell) Stream, Walkinstown Stream|
The River Camac (sometimes spelled Cammock, or, historically, Cammoge or Cammoke; Irish: An Chamóg or Abhainn na Camóige) is one of the larger rivers in Dublin and was one of four tributaries of the Liffey critical to the early development of the city.
The Camac forms from a flow from Mount Seskin - south east of Saggart, to the southwest of Dublin city - and other mountain streams, and an 18th-century diversion from the Brittas River tributary of the River Liffey. It flows through a mountain valley, the Slade of Saggart, south west of the broad Tallaght area and east of Newcastle, then past Saggart, through Corkagh Park and then Clondalkin, near which it is sometimes called Clondalkin River. The Camac then continues on to Inchicore where it is tunnelled under the Grand Canal before a bridge crossing at Golden Bridge, and Kilmainham, where it runs behind the jail museum, before entering the Liffey alongside Heuston Station, a little upstream of Sean Heuston Bridge. The river was tunnelled underneath the railway station when it was built in 1846.
The Camac receives tributaries in the Slade of Saggart, including the Ferny Glinn and the Two Slades, and later from around Newcastle, and near Clondalkin (including the Boherboy, Brownsbarn and Fettercairn Streams, the latter joining near the boundary of Corkagh Park, in which the Camac features). Lower tributaries include the Robinhood Stream (Coolfan River), Gallblack Stream (formed from the Blackditch and Gallanstown Streams), Drimnagh Castle (or Bluebell) Stream, and Walkinstown Stream.
- Doyle (2011), p. 17
- Doyle, Joseph W. (2011) . Ten Dozen Waters: The Rivers and Streams of County Dublin (3rd edition). Dublin, Ireland: Rath Eanna Research. pp. 1–30 + ii + map. ISBN 978-0-9566363-1-7.
- Sweeney, Clair L. (1991). The Rivers of Dublin. Dublin, Ireland: Dublin Corporation. pp. 1–115, inc. many maps. ISBN 0-9505301-4-X.