Dahm is a surname. Notable people with the surname include:
Britta Dahm (born 1968), German breaststroke swimmer Christian Dahm (born 1963), German politician Daniel Dahm (born 1969), German geographer and ecologist Fredrik Dahm (born 1982), Norwegian footballer Gyda Dahm (1851–1906), birth name of Gyda Gram, Norwegian painter Helen Dahm (1878–1968), Swiss artist Jan Dahm (1921–2013), Norwegian resistance member during World War II Mads Dahm (born 1988), Norwegian footballer Nathan Dahm (born c. 1983), American politician from Oklahoma Paul Dahm (born 1951), Luxembourgian composer Rich Dahm, American television writer Sebastian Dahm (born 1987), Danish professional ice hockey player Tobias Dahm (born 1987), German athlete specializing in shot put Werner Dahm (1917–2008), German spaceflight scientist Werner J. A. Dahm (born 1957), American aeronautical engineer Nicole, Erica and Jaclyn Dahm (born 1977), American triplet models Evan Dahm (born 1987), American webcartoonist Lauren Dahm (born 1989), American ice hockey goaltender George Dahm (1916–1980), American rower Jack Dahm (born 1967), American baseball coach
See also Dahms, surname Adolf Dahm-Petersen (1856 – 1922), Norwegian voice specialist and teacher of artistic singing