The Chimakum, also spelled Chemakum and Chimacum were a Native American people (known to themselves as Aqokulo and sometimes called the Port Townsend Indians), who lived in the northeastern portion of the Olympic Peninsula in Washington State, between Hood Canal and Discovery Bay through the mid-19th century. Their primary settlements were on Port Townsend Bay, on the Quimper Peninsula, and Port Ludlow Bay to the south. They are extinct, although a few members may be mixed in with the Twana (Skokomish) of the Skokomish Reservation, and the Jamestown S'Klallam and Port Gamble Klallam tribes. The Chimakum population was estimated at 400 in 1780 and 90 in 1855. The Census of 1910 enumerated just three. In the present day there are people who identify as Chimakums or descendants of Chimakums. Chimakum Creek and Chimacum, Washington, both located in the Chimacum Valley, are all named after the Chimakum.
Contributions by Pfly, Uyvsdi, and Cydebot.