Blaisdell is a surname. Notable people with the surname include:
Alfred Blaisdell (1875–1946), politician from North Dakota Daniel Blaisdell (1762–1833), politician from New Hampshire Frances Blaisdell (1912–2009), musician from New Jersey Frank Ellsworth Blaisdell (1862–1946), American professor of surgery and entomologist James A. Blaisdell (1867–1957), founder of the Claremont Colleges John Blaisdell Corliss (1851–1929), politician from Michigan Kealii Blaisdell (born 1972), Kanaka Maoli activist and notable Hawaiian songwriter Mike Blaisdell (born 1960), Canadian ice hockey player Harriett Blaisdell (born 1924), American businesswoman and philanthropist Neal Blaisdell (1902–1975), mayor of Honolulu Neal S. Blaisdell Center, multi-purpose center in Honolulu named after the mayor Paul Blaisdell (1927–1983), American artist and special effects creator Richard Kekuni Blaisdell (1925–2016), professor of medicine in Honolulu Tex Blaisdell (1920–1999), American comics creator William Blaisdell (1865–1931), American actor
See also Home Building & Loan Ass'n v. Blaisdell, a United States Supreme Court decision upholding a state's mortgage modification law