Manitoulin Island is the largest lake island globally, situated in Lake Huron in Canada. Covering an area of approximately 2,766 square kilometres, it is a prominent destination for both tourists and locals. The island is known for its rich biodiversity, with numerous hiking trails and natural parks attracting outdoor enthusiasts.
The indigenous Anishinaabe people have a significant presence on Manitoulin Island, contributing to its cultural richness. Visitors can explore various heritage sites and partake in community events that showcase local traditions. The island also boasts several charming towns, including Little Current and Gore Bay, both of which offer unique dining options and artisanal shops.
Manitoulin Island serves as a hub for water-based activities, from fishing to kayaking. The expansive shoreline features numerous beaches, making it a favourite spot for summer excursions. Conservation efforts are ongoing to preserve the island’s natural landscapes and wildlife, ensuring its beauty for future generations.
The ten largest lake islands in the world (by area) are:
Rank |
Island |
Lake |
Country |
Approx. Area |
|---|---|---|---|---|
1 |
Manitoulin Island |
Lake Huron |
Canada |
2,766 sq km |
2 |
Isle Royale |
Lake Superior |
United States |
535 sq km |
3 |
Olkhon Island |
Lake Baikal |
Russia |
730 sq km (often listed ahead of Isle Royale in some rankings because of differing definitions or measurements; exact ordering varies by source) |
4 |
Sotra |
Storavatnet |
Norway |
537 sq km (included only under some definitions of lake islands) |
5 |
Ukerewe Island |
Lake Victoria |
Tanzania |
530 sq km |
6 |
Korkeasaari |
Lake Saimaa |
Finland |
~385 sq km |
7 |
René-Levasseur Island |
Manicouagan Reservoir |
Canada |
2,020 sq km (on a reservoir rather than a natural lake, so often excluded from natural-lake lists) |
8 |
Mfangano Island |
Lake Victoria |
Kenya |
65 sq km |
9 |
Kihnu |
Coastal/lagoon system |
Estonia |
Not typically counted among true lake islands |
10 |
Koivusaari |
Lake Saimaa |
Finland |
~160 sq km |
Widely accepted list of the largest natural lake islands
If considering only natural islands in natural lakes, the commonly accepted top entries include:
-
Manitoulin Island – Lake Huron (Canada)
-
Olkhon Island – Russia
-
Isle Royale – Lake Superior (USA)
-
Ukerewe Island – Tanzania
-
Idjwi Island – Africa
-
Ometepe – Nicaragua
-
Mfangano Island – Kenya
-
St. Ignace Island – Canada
-
Sipi Island (smaller; rankings vary)
-
Zalavik Island (depending on measurement criteria)

