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.