Cornelius Job Ham (13 January 1837 – 10 December 1909) was a politician in colonial Victoria (Australia), mayor of Melbourne 1881–82 and a member of the Victorian Legislative Council 1882–1904.

[1] In 1842 the family arrived in the Port Phillip District (colony of Victoria from 1851) and John Ham became the first pastor of Collins Street Baptist Chapel, Melbourne.

[2] In November 1882 he stood for Melbourne Province in the Victorian Legislative Council in opposition to the late Dr. Beaney and George Selth Coppin, and was triumphantly returned,[2] being sworn in in December 1882 and holding the seat until May 1904.

[3] Ham accepted a seat in the James Munro Ministry without portfolio in November 1890, and was sworn of the Executive Council.

He married in 1868 Hattie, daughter of John Latham, of West Virginia, U.S.A., formerly United States Consul-General in Melbourne.