Pinnaroo may refer to:
Queensland Pinnaroo Cemetery and Crematorium, Brisbane
South Australia Pinnaroo, South Australia, a town and locality District Council of Pinnaroo (1908-1920), a former local government area which was renamed in 1920 as the District Council of Lameroo District Council of Pinnaroo, a former local government area which merged with the District Council of Lameroo to create the South Mallee District Council Hundred of Pinnaroo, a cadastral unit
See also Pinnaroo railway line (disambiguation) Lake Pinaroo Parish of Pinaroo