Robert Pike may refer to:
Robert Pike (settler) (1616–1706), opponent to the Salem witchcraft prosecutions of 1692
Robert Pike (bishop) (1905–1973), Bishop of Meath, 1959–1973
Robert L. Pike (1912–1981), pseudonym of Robert L. Fish, American writer of crime fiction
Bob Pike (politician) (1933–1994), Australian politician
Bob Pike (surfer) (1940–1999), Australian surfer
Rob Pike (born 1956), Canadian software engineer and author
Rob Pike (athlete) (born 1970), Canadian pole vaulter