Thomas Charles Beirne KSG (1860–1949) was an early businessman, politician and philanthropist in colonial and federation era Queensland,[1] Australia.

[2] Thomas Beirne was born on 9 July 1860 in County Roscommon at Ballymacurly, near Ballymoe, the third child of eight to parents considered to be 'the small farmer class'.

[3] After being a joint manager of the Richmond branch, but not being accepted for a wage rise to 45 shillings, Beirne left Eyre and Shepherd, and started to work with Foy and Gibson until mid-1885.

He was also a benefactor of Holy Name Cathedral, Brisbane, the Pius XII Regional Seminary at Banyo, Mater Misericordiae Hospital and Duchesne College in the University of Queensland.

He was awarded a papal knighthood of the Order of St Gregory by pope Pius XI and was a close associate with politicians William Higgs and Frank McDonnell and was friends with Archbishop James Duhig.