John McCann (17 June 1905 – 23 February 1980) was an Irish politician, author and journalist.
McCann stood unsuccessfully for election at the 1937 and 1938 general elections.
He was first elected to Dáil Éireann as a Fianna Fáil Teachta Dála (TD) at the Dublin South by-election held on 6 June 1939.The by-election was caused by the death of James Beckett of Fine Gael.
McCann was re-elected at each general election until he lost his seat at the 1954 general election.
He served as Lord Mayor of Dublin from 1947 to 1948 and 1964 to 1965.