Dorothy Mary Wyatt (née Fanning;^[1] 1925–2001) was a Canadian politician, who was mayor of St. John's, Newfoundland from 1973 to 1981^[2] and the city's first female mayor.^[3]

Wyatt first worked as a secretary, meeting her husband Donald Wyatt while working for American Overseas Airlines in Gander.^[3] She later returned to Memorial University of Newfoundland to study nursing.^[3]

Wyatt first won election to St. John's City Council in 1969 as the city's first female councilor.^[2] She ran for the mayoralty in 1973, winning the election and serving two terms in office.^[2] Her term as mayor was marked by accomplishments including the city's hosting of the Canada Summer Games in 1977,^[3] a shift from rental-value to capital-value municipal tax assessment,^[2] the adoption of a ward system for city council elections,^[2] and the construction of many of the city's modern office buildings.^[2]

Wyatt was defeated by John Joseph Murphy in the 1981 election.^[2] She was later reelected as a councillor at large in 1985, and remained a sitting member of city council until her death;^[4] she died just two days before the city's 2001 municipal election, and was posthumously reelected to her seat on September 25.^[4] A by-election was held on November 27 of that year, and was won by Sandy Hickman.^[4]

She was a candidate for provincial office twice, running as an independent candidate in St. John's Centre^[3] and later for the leadership of the Progressive Conservative Party of Newfoundland and Labrador in the party's 1979 leadership convention.^[3] In the PC race, she garnered no votes. She didn't vote for herself, admitting that she had run more "to shake things up" than out of a serious desire to actually lead the party,^[3] and was eliminated on the first ballot.^[3]

Wyatt revelled in a quirky and offbeat public image, once telling a reporter that she hoped to be classified "as a freak, I suppose".^[3]