Robert or Bob Abernethy may refer to:
Bob Abernethy (footballer) (1900–1969), Australian VFL player Bob Abernethy (1927–2021), American television news personality Robert J. Abernethy (born 1940), American businessman and philanthropist Robert Abernethy (swimmer) (born 1971), Australian swimmer
See also Robert Abernathy (baseball) (1917–1997), American outfielder in Negro leagues, a/k/a James Abernathy Robert Abernathy (1924–1990), American science fiction author