Gustaf von Numers (born 21 March 1848 in Maxmo; died 6 February 1913 in Kannus) was a Swedish-speaking Finnish author and station master.
Numers learned to know the theater man Kaarlo Bergbom in 1887. Bergbom got to read some of Numers's plays and set up several of his plays on the Finnish teater in Helsinki, for instance his debut piece Erik Puke in 1888. Numers wrote in Swedish, but was performed in Finnish. He was also serving as a station master in Bennäs from 1884, and in Kannus 1908–1913.