The Callan River is a tributary of the Blackwater River in Northern Ireland, flowing through a landscape that has long attracted game anglers seeking trout, dollachan (sea trout), and salmon. Controlled by the Armagh and District Anglers club, the Callan has seen changes in its productivity over the years but remains a worthwhile destination for fly anglers willing to work the water carefully. While it may not hold the same abundance of trout it once did, the river still offers an enjoyable day's fishing, and the ongoing efforts of the club continue to maintain and improve its quality as a game fishery.