Chehalis may refer to:
People Lower Chehalis people, a Native American people in Washington state Lower Chehalis language
Upper Chehalis people Upper Chehalis language Confederated Tribes of the Chehalis Reservation, a federally recognized Indian Tribe in Washington state Sts'ailes people, formerly called the Chehalis people, British Columbia Sts'ailes First Nation, formerly called the Chehalis First Nation, British Columbia
Places Chehalis, Washington Chehalis, British Columbia Chehalis River (Washington) Chehalis River (British Columbia)
Other Chehalis Western Railroad USS Chehalis (AOG-48), a World War II era U.S. Navy gasoline tanker supply ship