List of lakes of Ontario

This is an incomplete list of lakes in Ontario, a province of Canada. Ontario contains more than 250,000 lakes (including those forming part of the Great Lakes). The Great Lakes are a large binational system shared between Canada and the United States, which hold roughly 20% of the world’s fresh surface water[1][2]; this figure reflects the volume of the Great Lakes as a whole, not the many smaller lakes across Ontario.

Larger lake statistics

This is a list of lakes of Ontario with an area larger than 400 km2 (150 sq mi).[3][4][5]

Ontario lakes larger than 400 km2 (150 sq mi)
Lake Area (including islands) Altitude Depth max. Volume
Lake Superior[4] 82,100 km2 (31,700 sq mi) 184 m (604 ft) 406 m (1,332 ft) 12,000 km3 (2,900 cu mi)
Lake Huron[4] 59,600 km2 (23,000 sq mi) 177 m (581 ft) 229 m (751 ft) 3,543 km3 (850 cu mi)
Lake Erie[4] 25,700 km2 (9,900 sq mi) 174 m (571 ft) 64 m (210 ft) 480 km3 (120 cu mi)
Lake Ontario[4] 18,960 km2 (7,320 sq mi) 75 m (246 ft) 244 m (801 ft) 1,640 km3 (390 cu mi)
Lake Nipigon[3][5] 4,848 km2 (1,872 sq mi) 260 m (850 ft) 165 m (541 ft) 248 km3 (59 cu mi)
Lake of the Woods[3] 3,150 km2 (1,220 sq mi) 323 m (1,060 ft) 64 m (210 ft)
Lac Seul[3][5] 1,657 km2 (640 sq mi) 357 m (1,171 ft) 47.2 m (155 ft) 15 km3 (3.6 cu mi)
Lake St. Clair 1,114 km2 (430 sq mi) 175 m (574 ft) 8.2 m (27 ft) 3.4 km3 (0.82 cu mi)
Rainy Lake[3][5] 932 km2 (360 sq mi) 338 m (1,109 ft) 50 m (160 ft)
Lake Abitibi[3][5] 931 km2 (359 sq mi) 265 m (869 ft) 10 m (33 ft)
Lake Nipissing[3][5] 832 km2 (321 sq mi) 196 m (643 ft) 69 m (226 ft) 3.8 km3 (0.91 cu mi)
Lake Simcoe[3] 744 km2 (287 sq mi) 219 m (719 ft) 41 m (135 ft) 11.6 km3 (2.8 cu mi)
Big Trout Lake[3][5] 661 km2 (255 sq mi) 213 m (699 ft) 39.6 m (130 ft)
Sandy Lake[3][5] 527 km2 (203 sq mi) 276 m (906 ft) 41.8 m (137 ft) 2.72 km3 (0.65 cu mi)
Lake St. Joseph 493 km2 (190 sq mi) 371 m (1,217 ft)

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References

  1. ^ "Great Lakes ecoregion | National Oceanic and Atmospheric Administration". www.noaa.gov. Retrieved 2025-12-09.
  2. ^ "Summary of the Canada-Ontario Great Lakes agreement | ontario.ca". www.ontario.ca. 2015-01-16. Retrieved 2025-12-09.
  3. ^ a b c d e f g h i j "Principal lakes, elevation and area, by province and territory". Statistics Canada. 2005-02-02. Retrieved 2015-03-11.
  4. ^ a b c d e "Great Lakes Factsheet No. 1". Archived from the original on August 5, 1997. Retrieved 2015-03-21.
  5. ^ a b c d e f g h "World Lake Database (Lakes in Canada)". Archived from the original on 2016-03-14. Retrieved 2015-02-21.
  6. ^ "24 Mile Lake". Geographical Names Data Base. Natural Resources Canada.
  7. ^ Lake One
  8. ^ Lake Ontario
  9. ^ Lac Orignal
  10. ^ "Place names - Ottertooth Lake".
  11. ^ "Place names - Packsack Lake".
  12. ^ Lake Panache
  13. ^ Lac Paradis
  14. ^ Lac Pivabiska
  15. ^ Lake Placid
  16. ^ Lac à la Plonge
  17. ^ Lac Pomerleau
  18. ^ "Place names - Pot Lake".
  19. ^ "Place names - Pumphouse Lake".
  20. ^ Government of Canada, Natural Resources Canada. "Place names - Pine Lake". www4.rncan.gc.ca. Retrieved 2021-10-26.
  21. ^ "Place names - Rainbow Lake".
  22. ^ Lac Rancourt
  23. ^ "Place names - Redbridge Lake".
  24. ^ Lac du Rocher-Fendu
  25. ^ Lake Rosalind
  26. ^ Lake Rosseau
  27. ^ Lac aux Sables
  28. ^ Lake Scugog
  29. ^ Lake Seneca
  30. ^ Lac Seul
  31. ^ Lake Simcoe
  32. ^ Loch Smith
  33. ^ Lake St. Anthony
  34. ^ Lake St. Clair
  35. ^ Lake Ste. Marie
  36. ^ Lac Ste.-Thérèse
  37. ^ "Place names - Steve Lake".
  38. ^ Lake St. Francis
  39. ^ Lake St. George
  40. ^ Lac St. Jean
  41. ^ Lake St. John
  42. ^ Lake St. Joseph
  43. ^ Lake St. Lawrence
  44. ^ Lake St. Patrick
  45. ^ Lake St. Peter
  46. ^ Lake Superior
  47. ^ Lake Talon
  48. ^ Lake Temagami
  49. ^ Lake Timiskaming
  50. ^ Lac Tonnerre
  51. ^ Lake Travers
  52. ^ "Place names - Trout Lake".
  53. ^ Lake Twentythree
  54. ^ "Place names - Twin Narrows Lake".
  55. ^ "Place names - Twoline Lake".
  56. ^ Lake of Two Mountains
  57. ^ Lake of Two Rivers
  58. ^ "Place names - Upper Algocen Lake".
  59. ^ Lake la Vase
  60. ^ Lake Vernon
  61. ^ Lac Viau
  62. ^ Lake Victoria
  63. ^ Lake Wabukayne
  64. ^ Lake Whittaker
  65. ^ "Place names - Widdifield Lake".
  66. ^ Lake Wolsey
  67. ^ Lake of the Woods
  68. ^ Lake of the Woods
  69. ^ Lac de Zajac
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