Vessels of the Finnish Navy in the WWII:
| Ship Class | Number of ships | Tonnage | Main Weaponry | Notes |
| Armoured Vessel | 2 | 3900 tonnes | 4x254mm 8x105mm | "Ilmarinen" was sunk by a mine 13 Sep 1941 |
| Gun Boat | 4 | 342-400 tonnes | 2x105mm or 2x75mm, 12 depth charges, 40 mines | |
| Minelayer | 6 | 162-776 tonnes | 1x75mm or 2x40mm, 40-140 mines | "Riilahti" was sunk by enemy MTB's in 1943 |
| Motor Torpedo Boat | 22 | 11-22 tonnes | 2x45cm torpedo, 1x20mm or 1x7.62mm | |
| Patrol Boat (VMV) | 22 | 10-32 tonnes | 1x57mm or 1x7.62mm, depth charges, mines | |
| Small Minelayer | 5 | 60-80 tonnes | 1x7.62mm, 30-40 mines | |
| Minesweeper | 21 | 17-200 tonnes | 1x75mm or 1x20mm | |
| Escort | 4 | 335 tonnes | 1x45mm, 2x20mm, depth charges | |
| Auxiliary Gun Boat | 2 | 283-300 tonnes | 1x130mm, 3x20mm, depth charges | |
| Submarine | 5 | 3x490,1x250 and 1x99 tonnes | 1x76mm 1x20mm 6x533mm/ 1x20mm 5x533mm/ 1x13mm 2x450mm, mines |