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) (born 1964), New Zealand mathematician