Sir Robert Balfour, 1st Baronet (6 March 1844 – 4 November 1929) was a Scottish Liberal Party politician who set in the House of Commons of the United Kingdom from 1906 to 1922. He was the Member of Parliament (MP) for Partick from 1906 to 1918, and for or Glasgow Partick from 1918 to 1922.
He was born in Pilmuir, Largo, Fife in 1844, a son of James Balfour. He was educated at Madras College in St Andrews. He married Josephine Maria Beazley of Liverpool. They had two sons.
In 1863 he joined the merchant firm Balfour, Williamson & Co. From 1869 to 1893, he was stationed in San Francisco. From 1893 to 1899 he was based in Liverpool and then in London from 1899.
In 1906 he was elected Member of Parliament in Glasgow; He was re-elected at the following election; He was re-elected at the following election; At the following General Election in 1918, he supported the Coalition government of Lloyd George, and was awarded the 'coupon'; He retired from parliament just before the 1922 General Election.
He was created a Baronet on 3 February 1911. The baronetcy became extinct on his death in 1929.