Dorroughby () is a locality in the Northern Rivers region of New South Wales, Australia. It sits within the City of Lismore local government area and is located north-east of Lismore. In the it had a population of 158 people.
The traditional owners are the Widjabul and Wia-bal people of the Bundjalung Nation.
The European name for the area is said to have been taken from the Bundjalung language word durraba or dalagar meaning 'soft mud'.