Kootenay was a provincial electoral district in the Canadian province of British Columbia from 1871 to 1890. It was originally a two-member riding until the 1875 election; from 1878, it was a one-member seat until its partition for the 1890 election into East Kootenay and West Kootenay. For the 1966 election, the riding-name was re-established, but the area described was only the East Kootenay and included none of the West Kootenay.
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|Independent |John Andrew Mara |align="right"|17 |align="right"|43.59% |align="right"| |align="right"|unknown
|Independent |William Cosgrove Milby |align="right"|9 |align="right"|23.08% |align="right"| |align="right"|unknown
|Independent |Charles Todd |align="right"|13 |align="right"|13.33% |align="right"| |align="right"|unknown
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|- bgcolor="white" !align="right" colspan=3|Total valid votes !align="right"|-- !align="right"|--% !align="right"| |- bgcolor="white" !align="right" colspan=3|Total rejected ballots !align="right"| !align="right"| !align="right"| |- bgcolor="white" !align="right" colspan=3|Turnout !align="right"| !align="right"| !align="right"| |- bgcolor="white" !align="right" colspan=7|<sup>1</sup> <small>Seat reduced to one member from two.</small>
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|- bgcolor="white" !align="right" colspan=3|Total valid votes !align="right"|185 !align="right"|100.00% !align="right"| |- bgcolor="white" !align="right" colspan=3|Total rejected ballots !align="right"| !align="right"| !align="right"| |- bgcolor="white" !align="right" colspan=3|Turnout !align="right"|% !align="right"| !align="right"|
The riding was partitioned for the 1894 election.
The riding-name was re-established in time for the 1966 election, but covered only the East Kootenay region rather than the entire Kootenays as had been the case in its first incarnation.
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|NDP |Leo Thomas Nimsick |align="right"|3,605 |align="right"|40.98% |align="right"| |align="right"|unknown |- bgcolor="white" !align="right" colspan=3|Total valid votes !align="right"|8.798 !align="right"|100.00% !align="right"| |- bgcolor="white" !align="right" colspan=3|Total rejected ballots !align="right"|54 !align="right"| !align="right"| |- bgcolor="white" !align="right" colspan=3|Turnout !align="right"|% !align="right"| !align="right"|
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|NDP |Leo Thomas Nimsick |align="right"|4,282 |align="right"|38.39% |align="right"| |align="right"|unknown |- bgcolor="white" !align="right" colspan=3|Total valid votes !align="right"|11,153 !align="right"|100.00% !align="right"| |- bgcolor="white" !align="right" colspan=3|Total rejected ballots !align="right"|173 !align="right"| !align="right"| |- bgcolor="white" !align="right" colspan=3|Turnout !align="right"|% !align="right"| !align="right"|
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|NDP |Leo Thomas Nimsick |align="right"|6,065 |align="right"|44.20% |align="right"| |align="right"|unknown
|PC |David John Reeves |align="right"|4,169 |align="right"|30.38% |align="right"| |align="right"|unknown |- bgcolor="white" !align="right" colspan=3|Total valid votes !align="right"|13,721 !align="right"|100.00% !align="right"| |- bgcolor="white" !align="right" colspan=3|Total rejected ballots !align="right"|180 !align="right"| !align="right"| |- bgcolor="white" !align="right" colspan=3|Turnout !align="right"|% !align="right"| !align="right"|
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|NDP |Leo Thomas Nimsick |align="right"|7,223 |align="right"|47.71% |align="right"| |align="right"|unknown |- bgcolor="white" !align="right" colspan=3|Total valid votes !align="right"|15,138 !align="right"|100.00% !align="right"| |- bgcolor="white" !align="right" colspan=3|Total rejected ballots !align="right"|220 !align="right"| !align="right"| |- bgcolor="white" !align="right" colspan=3|Turnout !align="right"|% !align="right"| !align="right"|
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|PC |Roy Wilburn Paul |align="right"|975 |align="right"|7.80% |align="right"| |align="right"|unknown
|NDP |Douglas Wayne Right |align="right"|5,350 |align="right"|42.83% |align="right"| |align="right"|unknown |- bgcolor="white" !align="right" colspan=3|Total valid votes !align="right"|12,492 !align="right"|100.00% !align="right"| |- bgcolor="white" !align="right" colspan=3|Total rejected ballots !align="right"|102 !align="right"| !align="right"| |- bgcolor="white" !align="right" colspan=3|Turnout !align="right"|% !align="right"| !align="right"|
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|NDP |Harry Edwin Mathias |align="right"|8,245 |align="right"|47.36% |align="right"| |align="right"|unknown
|- bgcolor="white" !align="right" colspan=3|Total valid votes !align="right"|17,411 !align="right"|100.00% !align="right"| |- bgcolor="white" !align="right" colspan=3|Total rejected ballots !align="right"|208 !align="right"| !align="right"| |- bgcolor="white" !align="right" colspan=3|Turnout !align="right"|% !align="right"| !align="right"|
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|NDP |Kathleen Anne Edwards |align="right"|8,000 |align="right"|47.94% |align="right"| |align="right"|unknown
|Progressive Conservative |James G. Smith |align="right"|499 |align="right"|2.99% |align="right"| |align="right"|unknown |- bgcolor="white" !align="right" colspan=3|Total valid votes !align="right"|16,687 !align="right"|100.00% !align="right"| |- bgcolor="white" !align="right" colspan=3|Total rejected ballots !align="right"|271 !align="right"| !align="right"| |- bgcolor="white" !align="right" colspan=3|Turnout !align="right"|% !align="right"| !align="right"|