Robert or Bob Callahan may refer to:
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Bob Callahan (politician)
Robert Vincent Callahan (April 11, 1937 – December 26, 2020) was a Canadian politician from Ontario. Known as “Bob from Brampton” during his political career, he served as a Liberal member of the Legislative Assembly of Ontario from 1985 ...
(1937–2020), Canadian politician
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Bob Callahan (American football) (1923–2011), American football player
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Robert J. Callahan (1930–2013), Connecticut Supreme Court justice
See also
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Robert O'Callaghan (disambiguation)
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Robert Callaghan, a fictional character in the 2016 animated film ''Big Hero 6''
{{hndis, Callahan, Robert