William Logan Dart (25 August 1877 – 17 January 1969) was a member of the Queensland Legislative Assembly.

He was educated at Brisbane Central State School and in 1893 moved to Forest Hill where, along with his brother, he took up a selection.

[1] On 21 August 1907 Dart married Edith Maude Nielsen[1] (died 1991 aged 104)[2] and together had two sons and two daughters.

At the 1938 Queensland state election, Dart, representing the United Australia Party, won the seat of Wynnum, defeating the sitting member, John Donnelly.

[4] He held the seat until 1944 when, by then standing as an Independent, he lost to Bill Gunn of the Labor Party.