William MacGregor (Australian politician)

William Peter MacGregor (1853 – 24 February 1899) was a Scottish-born Australian politician.

His parents were Andrew MacGregor and Mary Dove, and he arrived in New South Wales around 1878, settling in Broken Hill. He ran a station near Silverton, and became involved in local mining as a shareholder and businessman. In 1885 he was elected to the New South Wales Legislative Assembly as the member for Wentworth. He was re-elected in 1887, but resigned later that year. MacGregor died in East Melbourne in 1899.