Caroline Louise Josephine Wells (August 1856 – 17 March 1939) was the first professionally qualified female dentist in Ontario, Canada.

She was also the first person to provide dental services in mental hospitals in Ontario, and towards the end of her career worked exclusively in these institutions.

In 1868 the ODA lobbied the Ontario government to pass the Act Respecting Dentistry, by which the dentists must be licensed in order to practice.

[1] The Royal College of Dental Surgeons of Ontario (RCDSO) was formed by ODA members to act as the governing body.

By the 1890s enforcement of strict compliance with the ODA code of ethics had almost eliminated false advertising by Ontario dentists.

She also provided dental services at the Andrew Mercer Reformatory for Women and at mental hospitals in Toronto, Hamilton and Orillia.