Dapp is a hamlet in central Alberta, Canada within Westlock County.

[2] It is located 4 kilometres (2.5 mi) west of Highway 44, approximately 81 kilometres (50 mi) northwest of St. Albert.

[1] As a designated place in the 2016 Census of Population conducted by Statistics Canada, Dapp had a population of 10 living in 4 of its 5 total private dwellings, a change of -70.6% from its 2011 population of 34.

[16] The community derives its name from the initials of David A. Pennicuick, a railroad official.

[17] In 1985, one of the last two traditional wooden grain elevators in Alberta was built in Dapp by the Alberta Wheat Pool.