Bob Armstrong (1939–2020) was an American professional wrestler.

Bob Armstrong is also the name of:

Bob Armstrong (boxer) (1873–1933), heavyweight boxer Bob Armstrong (ice hockey, born 1931) (1931–1990), Canadian ice hockey player Bob Armstrong (ice hockey, born 1961), American ice hockey player Bob Armstrong (politician) (1932–2015), member of the Texas House of Representatives Bob Armstrong (basketball, born 1920) (1920–2009), American basketball player Bob Armstrong (basketball, born 1933) (1933–2016), American basketball player Bob Armstrong (American football) (1909–1990), American football player Bob Armstrong (Australian footballer) (1875–1951), Australian rules footballer Bob Armstrong (English footballer) (1938–2014), English footballer Bob Armstrong (public servant) (1911–1988), Australian public servant and policy maker Bob Armstrong (policeman), (1948–2012), Australian policeman.

See also Robert Armstrong (disambiguation)