Sir Charles Archibald Nicholson, 2nd Baronet (27 April 1867 – 4 March 1949), was an English architect and designer who specialised in ecclesiastical buildings and war memorials. He carried out the refurbishments of several cathedrals, the design and build of over a dozen new churches, and the restoration of many existing, medieval parish churches. Nicholson was married first to Evelyn Louise Olivier (1866–1927) and they had three children, a son, John, and two daughters. His second wife was Catherine Maud Warren, who survived him upon his death in 1947.