Robert Caldwell (disambiguation) explained

Robert Caldwell (1814–1891) was a British missionary and linguist.

Robert Caldwell may also refer to:

• Robert Caldwell (academic) (1843–1914), Master of Corpus Christi College, Cambridge
• Robert Porter Caldwell (1821–1885), American representative from Tennessee
• Robert Caldwell (Australian politician) (1843–1909), South Australian politician
• Robert Caldwell (Wisconsin politician) (1866–1950), American farmer, businessman, and politician
• Robert Caldwell (footballer) (born 1909), English footballer
• Robert R. Caldwell, American theoretical physicist
• Bobby Caldwell (1951–2023), American musician
• Bobby Caldwell (drummer), American drummer
• Dr. Robert Caldwell, a character on St. Elsewhere portrayed by Mark Harmon