Robert McLachlan

Robert McLachlan may refer to:


 * Robert McLachlan (cyclist) (born 1971), Australian cyclist
 * Robert McLachlan (cinematographer), Canadian cinematographer
 * Robert McLachlan (entomologist) (1837–1904), British entomologist
 * Robert Wallace McLachlan (1845–1926), early Canadian numismatist
 * Robert McLachlan (mathematician), New Zealand mathematician