Point de Maisonnette is a cape located in northeastern New Brunswick, Canada. Its geographic coordinates are 47º50'15"N, 65º00'13"W.
It is the dividing point for delineating the northern limits of Caraquet Bay from Chaleur Bay. It is located near the unincorporated fishing community of Maisonnette.
The Canadian Coast Guard maintains a light station at Pointe de Maisonnette.
Pointe de Maisonnette was the focal point of a minor naval operation during World War II which saw vessels of the Royal Canadian Navy ambush U-536 in late September 1943 as part of what is known as the Battle of the St. Lawrence.
Canadian military intelligence and the Royal Canadian Mounted Police (RCMP) intercepted mail addressed to several Kriegsmarine officers (including Otto Kretschmer) imprisoned at the Camp 30 prisoner of war camp at Bowmanville, Ontario in early 1943. The correspondence detailed an escape plan where the prisoners were to tunnel out of the camp and make their way (using currency and false documents provided to them) through eastern Ontario and across Quebec to the northeastern tip of New Brunswick off the Pointe Maisonnette lighthouse where the POW escapees would be retrieved by a U-boat.
Canadian authorities did not tip off the POWs and detected signs of tunnel digging at Camp 30 shortly afterward. All POWs except one were arrested at the time of their escape attempt; the sole POW who managed to escape travelled all the way to Pointe de Maisonette undetected, likely travelling onboard Canadian National Railways passenger trains to the Bathurst area. This POW was apprehended by military police and RCMP on the beach in front of the lighthouse the night of the arranged U-boat extraction.