Ontario Lake Depths
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The largest lakes mapped on this site

Ranked by surface area from each lake’s Ontario MNRF survey outline. This ranks only the lakes mapped on this site — some of Ontario’s best-known waters, including Lake Nipigon, Lake of the Woods and Lake Muskoka, have no usable survey here and are simply absent, not smaller or shallower. Lakes that cross a provincial or international border are ranked by the part the Ontario survey maps.

100 lakes

  1. 1Lake AbitibiCochrane District95,093 ha
  2. 2Lake NipissingNipissing District89,637 ha
  3. 3Lake SimcoeYork Region74,135 ha
  4. 4Lake St. JosephKenora District56,704 ha
  5. 5Sandy LakeKenora District51,544 ha
  6. 6Trout LakeKenora District40,184 ha
  7. 7Eagle LakeKenora District35,434 ha
  8. 8Wunnummin LakeKenora District32,114 ha
  9. 9Ogoki ReservoirThunder Bay District22,196 ha
  10. 10Minnitaki LakeKenora District19,128 ha
  11. 11Missisa LakeKenora District18,326 ha
  12. 12Red LakeKenora District18,271 ha
  13. 13Kesagami LakeCochrane District17,416 ha
  14. 14Finger LakeKenora District16,179 ha
  15. 15Deer LakeKenora District15,834 ha
  16. 16Dog LakeThunder Bay District15,294 ha
  17. 17MacDowell LakeKenora District14,663 ha
  18. 18Birch LakeKenora District13,988 ha
  19. 19Long LakeThunder Bay District13,798 ha
  20. 20Cat LakeKenora District13,754 ha
  21. 21Wanapitei LakeSudbury District13,504 ha
  22. 22Kabinakagami LakeAlgoma District13,441 ha
  23. 23Weagamow LakeKenora District12,821 ha
  24. 24Kakagi LakeKenora District12,796 ha
  25. 25Stout LakeKenora District11,939 ha
  26. 26Onaman LakeThunder Bay District11,688 ha
  27. 27Namakan LakeRainy River District11,478 ha
  28. 28Night Hawk LakeCochrane District11,005 ha
  29. 29Wabigoon LakeKenora District10,955 ha
  30. 30Manitou LakeManitoulin District10,636 ha
  31. 31Miniss LakeThunder Bay District10,346 ha
  32. 32Dryberry LakeKenora District10,245 ha
  33. 33Nibinamik LakeKenora District10,243 ha
  34. 34Rice LakePeterborough County10,021 ha
  35. 35Eabamet LakeKenora District9,898 ha
  36. 36White Otter LakeKenora District9,560 ha
  37. 37Panache LakeSudbury District9,327 ha
  38. 38Sturgeon LakeKawartha Lakes9,276 ha
  39. 39Onaping LakeSudbury District8,372 ha
  40. 40Missinaibi LakeSudbury District8,340 ha
  41. 41Pakwash LakeKenora District8,288 ha
  42. 42Mojikit LakeThunder Bay District7,970 ha
  43. 43Pashkokogan LakeThunder Bay District7,875 ha
  44. 44Nungesser LakeKenora District7,830 ha
  45. 45Northern Light LakeThunder Bay District7,585 ha
  46. 46Favourable LakeKenora District7,308 ha
  47. 47Kabania LakeKenora District7,283 ha
  48. 48Big Vermilion LakeKenora District7,253 ha
  49. 49Pigeon LakePeterborough County7,252 ha
  50. 50Longlegged LakeKenora District7,210 ha
  51. 51Lake of BaysMuskoka7,115 ha
  52. 52Lake RosseauMuskoka7,051 ha
  53. 53North Spirit LakeKenora District6,946 ha
  54. 54Two River LakeKenora District6,822 ha
  55. 55Lake ScugogDurham Region6,679 ha
  56. 56McInnes LakeKenora District6,563 ha
  57. 57Moar LakeKenora District6,509 ha
  58. 58Atikwa LakeKenora District6,499 ha
  59. 59Miminiska LakeKenora District6,232 ha
  60. 60Wabaskang LakeKenora District6,207 ha
  61. 61White LakeThunder Bay District6,204 ha
  62. 62Cairns LakeKenora District6,119 ha
  63. 63Opinnagau LakeKenora District5,868 ha
  64. 64Balsam LakeKawartha Lakes5,833 ha
  65. 65Keezhik LakeKenora District5,822 ha
  66. 66Pitangikum LakeKenora District5,800 ha
  67. 67Rowan LakeKenora District5,779 ha
  68. 68Lake JosephMuskoka5,742 ha
  69. 69Dog LakeAlgoma District5,722 ha
  70. 70Lake KagawongManitoulin District5,665 ha
  71. 71Otukamamoan LakeRainy River District5,654 ha
  72. 72Nikip LakeKenora District5,622 ha
  73. 73Gull LakeKenora District5,615 ha
  74. 74Little Vermilion LakeKenora District5,601 ha
  75. 75Mameigwess LakeKenora District5,551 ha
  76. 76Nagagami LakeAlgoma District5,454 ha
  77. 77Mameigwess LakeKenora District5,429 ha
  78. 78Makokibatan LakeKenora District5,355 ha
  79. 79Kingfisher LakeKenora District5,344 ha
  80. 80Pakashkan LakeThunder Bay District5,296 ha
  81. 81Sakwaso LakeKenora District5,217 ha
  82. 82Dinorwic LakeKenora District5,039 ha
  83. 83Petownikip LakeKenora District5,022 ha
  84. 84Black Sturgeon LakeThunder Bay District4,962 ha
  85. 85Marmion LakeRainy River District4,868 ha
  86. 86Big Rideau LakeLeeds and Grenville4,811 ha
  87. 87Confederation LakeKenora District4,733 ha
  88. 88Press LakeKenora District4,668 ha
  89. 89Lake of BaysKenora District4,598 ha
  90. 90Oak LakeKenora District4,566 ha
  91. 91Kenogamisis LakeThunder Bay District4,477 ha
  92. 92Maria LakeKenora District4,387 ha
  93. 93Bark LakeRenfrew County4,209 ha
  94. 94Matinenda LakeAlgoma District4,170 ha
  95. 95Old Shoes LakeKenora District4,128 ha
  96. 96Indian LakeKenora District4,116 ha
  97. 97Barton LakeKenora District4,006 ha
  98. 98Wabakimi LakeThunder Bay District3,989 ha
  99. 99McKay LakeThunder Bay District3,982 ha
  100. 100Larder LakeTimiskaming District3,923 ha
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More ways to explore

Deepest Mapped Lakes in OntarioMapped Ontario Lakes Deeper Than 100 FeetMapped Ontario Lakes Over 1,000 AcresRiver Reaches With Depth Maps in Ontario