Wainwright is a town on the prairies of east-central Alberta, Canada.

It is located on the north side of the Canadian National Railway, with CFB Wainwright (Denwood) located on the southwest side. The town lies 61 kilometres (38 mi) south of Vermilion, in the Battle River valley, along Highway 41, called the Buffalo Trail. The town was originally named Denwood, but was later relocated by the Grand Trunk Pacific Railway 5 kilometres (3.1 mi) west-northwest and renamed after General William Wainwright, the second vice-president of GTPR.

Wainwright has the third-largest stampede in Canada. It occurs at the end of June, and includes a rodeo, chuckwagon races, parade, midway, and an agricultural fair.