Ainsworth may refer to:
Places Canada Ainsworth Hot Springs, British Columbia United Kingdom Ainsworth, Greater Manchester, England United States Ainsworth, Indiana Ainsworth, Iowa Ainsworth, Nebraska Ainsworth, Wisconsin Ainsworth, Washington, ghost town Ainsworth State Park, Oregon
People Ainsworth (surname)
Ships City of Ainsworth, a pioneer sternwheeler from British Columbia; its deep-water wreck is a heritage site
Other uses Ainsworth baronets