Grimm is a surname of German origin. Notable people with the surname include:
Alexander Grimm (born 1986), German slalom canoeist
Alfred Grimm (1943–2026), German object artist, sculptor, painter and draftsman
Brothers Grimm, German linguists
Jacob Grimm (1785–1863), German philologist, jurist and mythologist
Wilhelm Grimm (1786–1859), German author, the younger of the Brothers Grimm
Carl Hugo Grimm (1890–1978), American composer
Charlie Grimm (1898–1983), American baseball player and manager
Christi Grimm, American politician
Christoph Grimm (born 1957), German politician
Christopher Grimm, American writer, director, and actor
Christopher Grimm (politician) (1828–1895), American businessman and politician
Cindy Grimm, American computer scientist, roboticist, and mechanical engineer
Claus Grimm (born 1940), art historian, cataloger of the works of Frans Hals
Constantin de Grimm (1845–1896), Russian-born artist
Georg Grimm (1846–1887), German painter, designer and decorator
George Grimm (1859–1945), American politician and judge
George Grimm (Presbyterian minister) (1833–1897) Australian Presbyterian minister in New South Wales
Hans Grimm (1875–1959), extreme right-wing German writer
Julius Otto Grimm (1827–1903), German composer and conductor
Justin Grimm (born 1988), American baseball player
Luke Grimm (born 2001), American football player
MF Grimm (born 1970), American musician and comic book writer
Marco Grimm (born 1972), German football player
Friedrich Melchior, Baron von Grimm (1723–1807), German-born French author and encyclopedist
Michael Grimm (disambiguation), multiple people
Robert Grimm (1881–1958), Swiss socialist politician
Rudolf Grimm (born 1961), Austrian experimental physicist
Russ Grimm (born 1959), American football player
Samuel Hieronymus Grimm (1733–1794), Swiss artist
Silke Grimm (born 1967), German politician
Warren Grimm (1888–1919), victim of the Centralia Massacre
Wendelin Grimm (1818–1890), American farmer
Fictional characters
Benjamin Grimm, a superhero better known as The Thing