Ahlquist is a surname. Notable people with the surname include:
Dale Ahlquist (born 1958), American author Jessica Ahlquist (born 1995), American activist Jon Edward Ahlquist (1944–2020), American molecular biologist and ornithologist Lloyd Ahlquist (born 1977), American comedian/musician Raymond P. Ahlquist (1914–1983), American pharmacist and pharmacologist Steve Ahlquist, American journalist
See also Ahlquist v. Cranston Ahlqvist