Robert Reynolds may refer to:
- Robert Reynolds (American football) (born 1981), former American football linebacker
- Robert Reynolds (MP) (1601–1678), English lawyer and member of parliament (MP)
- Robert Reynolds (gymnast) (1881–1955), American Olympic gymnast
- Robert Reynolds (National Youth Rights Association), president of the association
- Robert Carthew Reynolds (1745–1811), Royal Navy admiral
- Robert J. Reynolds (1838–1909), American politician, governor of Delaware
- Robert L. Reynolds (1902–1966), American historian
- Robert R. Reynolds (1884–1963), American senator
- Robert R. Reynolds (Florida politician), member of the Florida House of Representatives
- Rob Reynolds (journalist), American journalist, correspondent for Al Jazeera
- Rob Reynolds (musician) (born 1967), singer-songwriter
- H. Robert Reynolds (born 1934), American conductor and composer