George Aitchison Jr. RA (7 November 1825 – 16 May 1910) was a British architect.
He became an Associate member of the Royal Academy of Arts in 1881 and a full member in 1898, and was Professor of Architecture there from 1887 to 1905. He became a member of the Royal Institute of British Architects in 1862 and was its President from 1896 to 1899. He won the Royal Gold Medal in 1898.
- London (England). Merchant Taylors' School; Merchant Taylors' School (London, England); Charles John Robinson (1883). A register of the scholars admitted into Merchant Taylor's School: from A. D. 1562 to 1874, comp. from authentic sources and ed. with biographical notices. Printed and published for the editor by Farncombe & co. pp. 260–. Retrieved 27 October 2012.
- The Men of the Time reference says "Royal Institute of British Artists", but this seems to be a typo (there is a Royal Society of British Artists)
- Cooper, Thompson (1884). "Aitchison, George". Men of the Time (eleventh ed.). London: George Routledge & Sons. p. 23.
- "George Aitchison, jun". Oxford Dictionary of Architecture & Landscaping. Retrieved 2011-02-17.
- "George Aitchison, R.A.". RA Collections. Royal Academy of Arts. Retrieved 2011-02-17.