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

ON
Canadian Provinces and Territories
Ontario relief map
Lake Superior at Neys Provincial Park Ontario
Lake Huron
Frozen Lake Erie
Looking east across Lake Ontario to Toronto
Scarborough bluffs Lake Ontario
Lake Nipigon
Rainy Lake from Tango Channel

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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A

B

C

D

E

F

G

H

I

J

K

L

M

Mazinaw Lake

N

O

P

R

S

T

U

V

  • Lake la Vase[59]
  • Lake Vernon[60]
  • Lac Viau[61]
  • Lake Victoria[62]

W

Y

Z

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
Wikimedia Commons has media related to Lakes of Ontario.
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