Tranby is a heritage-listed former residence and now adult education centre for Aboriginal Australians in Sydney, commonly known as Tranby Aboriginal College. It is located at 13 Mansfield Street in the inner western Sydney suburb of Glebe in the City of Sydney local government area of New South Wales, Australia. It was designed by A. L. & G. McCredie and built from 1858 to 1910, and is also known as Toxteth Cottage.Since 1958 the house and grounds have been the main campus of Tranby National Adult Indigenous Education and Training, and they are owned by Tranby Aboriginal Co-operative Ltd. The property was added to the New South Wales State Heritage Register on 2 April 1999.