Rahm is the surname of:
Bror Yngve Rahm (born 1955), Norwegian politician
Christina Rahm (c. 1760–1837), Swedish actress and opera singer
John Rahm (1854–1935), American golfer
Johnny Rahm (1965–2004), American actor
Jon Rahm (born 1994), Spanish golfer
Karl Rahm (1907–1947), German SS-Sturmbannführer, commandant of the Theresienstadt concentration camp
Kevin Rahm (born 1971), American actor
Philippe Rahm (born 1967), Swiss architect
Rahm is also a given name, deriving from the Hebrew רחמים (mercy) or רמ (high, lofty):
Rahm Emanuel (born 1959), American politician, Mayor of Chicago