Charles Diamond (17 November 1858 – 19 February 1934)^[1] was an Irish newspaper entrepreneur and Labour Party politician.

Charles Diamond was born on 17 November 1858 in Derry, Ireland. He later emigrated to England, settling in Newcastle-upon-Tyne by 1878.^[2]

Diamond worked as a journalist.^[3] In 1884, he launched The Irish Tribune and in 1887 acquired the Glasgow Observer as well as The Catholic News, which he both amalgamated into The Catholic Herald,^[4] of which he was editor in charge until his death, aged 75, in 1934. In 1888 he founded the Weekly Herald, Catholic Educator and Manchester Citizen newspapers.^[5] In 1899, he bought the Aberdeen Catholic Herald.^[6] Throughout his life he established 37 weekly newspapers.^[3]

Diamond was an outspoken and controversial figure, described by one of his successors as "the kind of a man who made a good many enemies". On 8 January 1920 he was arrested and charged with publication of an article in the Catholic Herald that allegedly encouraged assassination in Ireland. ^{[citation needed]}

Diamond entered the British House of Commons as an Anti-Parnellite Nationalist in 1892, sitting for North Monaghan the following three years.^[1] He contested Peckham in the 1918 general election and Rotherhithe in the 1922 general election, as a Labour Party candidate, however was unsuccessful.^[7] Extensive travels led him through Southern Africa, America and Southern Europe.^[3]

Diamond married Jeannie, only daughter of Jeremiah McCarthy, in 1882.^[3] He died on 19 February 1934.