Lewis Island may refer to:
;Canada
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Lewis Island (British Columbia), an island near the mouth of the Skeena River on the North Coast of British Columbia
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Crease Island, British Columbia, was formerly known as Lewis Island
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Lewis Island (Nova Scotia), an island in Inverness County, Nova Scotia
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Lewis Island (Algoma), an island in the Algoma District of Ontario
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Lewis Island (Leeds County), an island in Leeds County, Ontario
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Lewis Island (Manitoba), an island in Manitoba
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Lewis Islands, Newfoundland and Labrador, in the Terra Nova Peninsula region
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Lewis Island (Newfoundland and Labrador), one of four islands in that province
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Lewis Island Tickle, a channel in Newfoundland and Labrador
;United States
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Lewis Island (Connecticut), off the shore of the state of Connecticut
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Lewis Island (Georgia)
;Elsewhere
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Lewis Island (Antarctica)
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Lewis Island (South Australia)
Lewis Island is an island located in Spencer Gulf off the east coast of Jussieu Peninsula on Eyre Peninsula in South Australia approximately south-east of Port Lincoln. It was named by Matthew Flinders in memory of George Lewis who was one o ...
*West Lewis Island (
Dampier Archipelago, Western Australia)
*East Lewis Island (Dampier Archipelago,
Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...
)
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Isle of Lewis
The Isle of Lewis ( gd, Eilean Leòdhais) or simply Lewis ( gd, Leòdhas, ) is the northern part of Lewis and Harris, the largest island of the Western Isles or Outer Hebrides archipelago in Scotland. The two parts are frequently referred to as ...
, a peninsula in the Outer Hebrides, Scotland
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Lewis and Harris, Outer Hebrides, the largest island in Scotland
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