Charles Joseph Byrnes (1835 – 22 October 1917) was an Australian politician.
[1] He was born in Parramatta, the youngest son of Ruth Barber and James Byrnes, a storekeeper and early New South Wales politician.
[2] The younger Byrnes was articled to a solicitor, but chose business over law and took over the family wool mill at Parramatta.
He also owned a tweed mill at Granville, and was a long-serving alderman and mayor of Parramatta.
In 1874 he was elected to the New South Wales Legislative Assembly for Parramatta.