Robert or Bob Watt may refer to:
Robert Watt (bibliographer) (1774–1819), Scottish physician and bibliographer Robert Watt (miner) (1832–1907), Scottish–American miner Robert Watt (officer of arms) (born 1945), Canadian museum curator and officer of arms Robert Watt (Irish civil servant), secretary general of the Department of Health (Ireland) Robert Lee Watt (born 1948), first African American French hornist hired by a major symphony orchestra in the United States Bob Watt (ice hockey) (1927–2010), Canadian ice hockey player Bob Watt (footballer) (1933–1984), Australian rules footballer
See also Robert Watts (disambiguation) Robert Watson-Watt (1892–1973), Scottish pioneer of radio direction finding and radar technology