Grob

Grob may refer to:
 * Grob Aircraft, a German aircraft manufacturer
 * Grob fragmentation, an elimination reaction between an electrofuge and nucleofuge on an aliphatic chain
 * GrOb or Grazhdanskaya Oborona, a Russian punk band
 * Grob Gob Glob Grod, a characters in the animated series Adventure Time

People with the surname

 * Charles Grob, professor of psychiatry
 * Connie Grob (1932-1997), American baseball player
 * Henri Grob (1904–1974), Swiss chess master
 * Jakob Grob (born 1939), Swiss rower
 * Jeffrey S. Grob, American Roman Catholic bishop
 * Konrad Grob (1828–1904), Swiss painter
 * Therese Grob (1798–1875), first love of Franz Schubert