Robert Barr (8 March 1862 – 27 April 1947) was an Australian politician.
Born in Ayrshire to ironworker James Barr and Janet Watson, his family arrived in Castlemaine in 1862, moved to Fryerstown in 1870 and Bendigo in 1872.
He was a pupil teacher at Ironbark before becoming a journalist with the Bendigo Independent from 1878 to 1881, when he founded Fitzroy City Press with two partners.
Elected to Fitzroy City Council in 1898, he served until 1942, including two periods as mayor (1902–03, 1918–19).
In 1902 Barr was elected to the Victorian Legislative Assembly as the ministerialist member for Fitzroy, but he was defeated in 1904.