Sir Alfred Langler (5 May 1865 – 26 March 1928) was an Australian journalist and newspaper editor.
He joined the staff of the Western Daily Mercury at a young age, as an apprentice journalist.
He moved to Perth in July 1895 to become a sub-editor of The West Australian, and in 1902 replaced John Nanson as assistant editor and leader writer.
After the deaths of several of the paper's key figures (including co-owners Charles Harper in 1912 and John Winthrop Hackett in 1916), Langler was made chief editor.
Langler became chairman of directors of its new holding company, West Australian Newspapers, and, as executor of Hackett's will, oversaw the distribution of the money to his estate (including large donations to the University of Western Australia and the Anglican Diocese of Perth).