Robert Jack

Robert Jack may refer to:


 * Rollo Jack (Robert Rollo Jack, 1902–1994), footballer
 * Robert Jack (physicist) (1877–1957), Scottish-born physicist in New Zealand
 * Robert Logan Jack (1845–1921), Queensland government geologist
 * Bob Jack (1876–1943), Scottish footballer and manager
 * Robert Jack, actor who played Czar Nicholas II in the 2019 docudrama series The Last Czars