The Tamar Valley is a valley in Tasmania, Australia. It runs north-west from the northern city of Launceston to the coast either side of the Tamar River, a distance of approximately 50 km.

There are more than 20 vineyards lining the valley and tourists are guided by the Tamar Valley Wineroute.^{[citation needed]} The main varieties of grapes grown are pinot noir and chardonnay.^{[citation needed]}

The Tamar Valley is a Graben - a depressed block of the crust bordered by parallel faults.^[1]