Polwarth and South Grenville was an electoral district of the Legislative Assembly[1] in the Australian state of Victoria from 1859 to 1889.

It was based in western Victoria.

[2] Polwarth and South Grenville was created after the Electoral district of Polwarth, Ripon, Hampden and South Grenville was divided in 1859.

[1][3] After the abolition of Polwarth and South Grenville in 1889, a new Electoral district of Polwarth was created, Charles Forrest went on to represent Polwarth from April 1889 to September 1894.

[1]