Arthur Dewar, Lord Dewar (14 March 1860 – 14 June 1917) was a British politician and judge who served as a Liberal Member of Parliament (MP) for Edinburgh South as well as Solicitor General for Scotland and later a Senator of the College of Justice.

He was admitted to the Scottish Bar in 1885, and in 1892 was appointed the Advocate-Depute for the Glasgow circuit, a minor governmental post, which he held until 1895 when the Conservative Party came into power.

He had been made King's Counsel in 1904, and served as Solicitor General for Scotland from February 1909 – 1910.

[2][1] He was re-elected in the January 1910 general election, but resigned from the Commons in April that year when he was appointed a Senator of the College of Justice,[3] replacing the deceased McLaren.

[5] He is buried in the 20th century extension to Dean Cemetery in Edinburgh, against the northmost wall.