The Kootenays or Kootenay (/ˈkuːtni/ KOOT-nee) is a region of southeastern British Columbia. It takes its name from the Kootenay River, which in turn was named for the Kutenai First Nations people.
 The Kootenays are more or less defined by the Kootenay Land District, though some variation exists in terms of what areas are or are not a part.  The strictest definition of the region is the drainage basin of the lower Kootenay River from its re-entry into Canada near Creston, through to its confluence with the Columbia at Castlegar (illustrated by a, right).  In most interpretations, however, the region also includes:
 Some or all of the following areas to the north, which drain into the Columbia River, are also commonly included in the Kootenays:
 When the above regions are added, sometimes the region's name is morphed into Columbia-Kootenay or Kootenay-Columbia, although that terminology also includes the Big Bend Country and Kinbasket Lake, to the north of Golden and Revelstoke, which is not generally considered part of the Kootenays, though part of the Kootenay Land District.
 Finally, the Boundary Country, a southern east-west corridor between the Okanagan and the Bonanza Pass and drained by the basins of the Kettle and Granby Rivers, is sometimes mentioned as being in the West Kootenay, and in other reckonings as being part of the Okanagan.  In actuality, the settlement of the Boundary Country predates development in either of the regions it is now attached to, as is also the case with the Similkameen Country to the west of the Okanagan.  In some descriptions, the Boundary Country includes Osoyoos and Oliver in the South Okanagan (rather than the other way around).  The Boundary Country is (illustrated by h)  In the event of its inclusion, the Kootenays could be described as the complete Canadian portion of the Columbia Basin minus lands drained by the Okanagan River.
 Contingent on the above boundaries, the Kootenays are commonly split either into East and West, or East, Central and West. In general use amongst locals of the area, the "East/West" convention is more common as a descriptor of where someone is from or where a town is located (rather than splitting the region into "East/Central/West" subregions). That being said:
 It remains unclear why both Kootenay and Kootenays are used somewhat interchangeably to describe the area. The plural form is in reference to The Kootenays, both East and West; the singular is in reference to the Kootenay Region. In practice the two terms are used interchangeably, although one indicates a geographical region and the other a legal boundary, the Kootenay Land District, which was identical with the original federal and provincial Kootenay ridings.
 Once settled by miners, loggers, and rail workers - the area experienced a silver rush in the 1890s, the district now contains important tourism, outdoor activity and fruit-growing regions (Creston Valley) and numerous commercial centres, including Grand Forks, Kaslo, Robson,
Ymir, Warfield, Montrose, Fruitvale, Salmo, Trail, Nelson, Slocan, Playmor, Winlaw, Cranbrook,  Kimberley, Fernie, Castlegar, Rossland, Erickson, and Creston.
 The region has a large network of outdoor activity operators, with the biggest facilities including lift, cat and heli-skiing. This includes some of the oldest resorts in North America such as Red Mountain, and largest Revelstoke Mountain. The highway that connects them all has been named the powder highway.
 With the emergence of fibre internet, digital nomads and technology developers are now a growing part of the economy. Several coworking and innovation centres have sprouted including Kootenay Lake Innovation Centre.
 A number of Community Radio stations exist in the region, most notably CJLY-FM in Nelson, CIDO-FM in Creston and Stoke FM in Revelstoke. These stations usually operate either as Cooperatives or as non-profit Societies.