Mervyn Napier Waller CMG OBE (19 June 1893 – 30 March 1972) was a noted Australian muralist, mosaicist and painter in stained glass and other media. He is perhaps best known for the mosaics and stained glass for the Hall of Memory at the Australian War Memorial, Canberra, completed in 1958. However, Melbourne has been described as "a gallery of Napier Waller’s work", as eleven monumental murals by Waller are on display in the central business district and at the University of Melbourne’s main campus.
The Australian Dictionary of Biography says his work "was strongly influenced by Pre-Raphaelite and late-nineteenth century British painters; his monumental works show an increasingly classical and calmly formal style, using timeless and heroic figure compositions to express ideas and ideals, sometimes with theosophical or gnostic overtones".
Napier Waller was born in Penshurst, Victoria in 1893. His parents were native-born: William Waller, a contractor, and Sarah née Napier. He studied at the National Gallery schools in Melbourne, and exhibited paintings and drawings in 1915. He enlisted in the Australian Imperial Force that year, and soon after married Christian Yandell, a fellow art student.
He served in France from 1916, being so seriously wounded at Bullecourt that he lost his right arm. He was right-handed but learned to use his left hand while recuperating. Back in Australia, he established his reputation by exhibiting more paintings. In 1923 he exhibited a series of linocuts, being the first to make and exhibit linocuts in Australia. His first mural design failed to win a competition in 1921. His first major mural was for the Menzies Hotel in Melbourne, in 1927. In 1927 he completed murals at the Melbourne Town Hall. The State Library of Victoria accepted his mural Peace After Victory in 1928. He studied mosaics in Ravenna and Venice in 1929.