Barmedman is a rural village in the Bland Shire in the New South Wales state of Australia, located approximately half-way between West Wyalong and Temora. Barmedman began as a service centre for gold-mining operations in the area. Nowadays the local district has an agricultural economic base, including wheat and canola cropping and sheep grazing. It is the home of two large wheat silos with a combined capacity of over a million bushels. At the 2011 census, Barmedman had a population of 212. The township's name is derived from an Aboriginal word meaning 'long water'.

In December 1849 the 'Barmedman' pastoral run, leased by John Cartwright, was described as having an estimated area of 36,000 acres with a grazing capacity of about 1,000 cattle. Within its boundaries was a water-source called the Barmedman Waterhole.

In August 1872 the Robertson brothers purchased 'Barmedman' station from A. G. Jones. At about the same time the brothers also purchased 'West Bland Plains' and 'Bland West' stations. One of the brothers, Lachlan Robertson, resided on 'Barmedman' station until his death in 1916.

In 1874 newspaper reports began to appear of gold-mining operations at a location called Barmedman Reefs, on the 'Barmedman' pastoral run 70 miles north-west of Young. The location was described as “a hill of no great altitude” making up an area of 10 acres “with hardly perceptible slopes on either side”. Seams (or reefs) of gold-bearing quartz had been found within the formation which consisted of layers of slate and sandstone.

Quartz reef mining was carried out by using crushing machines which reduced the quartz to a fine dust, after which it was mixed with water and passed into ‘ripple tables’ where gold could be extracted by means of plates coated with mercury (which amalgamated with any gold fragments). Mining with crushing machines required a workforce to dig the shafts, extract the rock and operate the machinery. Miners operating at the Barmedman Reefs in early 1874 were the partnership of Mayne, Marr, and the Quail brothers and also M’Garr “and party”.

In about May 1878 a public-house opened at Barmedman Reefs, owned and managed by Mrs. Maher. Jackson's store opened shortly afterwards at the locality. Another business at Barmedman Reefs was carried out by Christopher M’Neven, operating as a blacksmith and wheelwright. Mrs. Maher's hotel at Barmedman Reefs, as well as a store also owned by her, were burned down in January 1881; it was reported that "Mrs. Maher and the children were barely outside when the roof fell with a loud crash".

The locality was known as Barmedman Reefs (or Barmedman Reef) until the early 1880s. From about 1882, after much of the attention had been taken away by the gold-rush at nearby Temora, the name of the township increasingly began to be shortened to Barmedman.

By early 1882 there were two hotels operating at Barmedman: the West Coast of New Zealand Hotel owned by Alexander Constantine (who had been a successful miner in the district) and the Barmedman Hotel owned by John Birnie. By the end of 1882 a third hotel had opened in the town, the Melbourne Club Hotel owned by John Cohen.