Ernest John Chambers (16 April 1862 – 11 May 1925) was a Canadian militia officer, journalist, author, and civil servant.

After graduation, he became a journalist with the Montreal Daily Star, where he covered the Frederick Dobson Middleton and the North-West Rebellion of the Métis people.

From 1904–1925, he served as Gentleman Usher of the Black Rod, the most senior protocol position in the Parliament of Canada.

His censorship efforts reflected a strong English-Canadian nationalism and tried to ban foreign language newspapers.

During the Winnipeg General Strike in 1919, he banned the Yiddish journal Volkstimme which supported the strikers.