| John Ryan | |
| Senator for South Australia | |
| Term Start: | 22 February 1950 |
| Term End: | 30 June 1959 |
| Birthname: | John Lattin |
| Birth Date: | 1890 12, df=yes |
| Birth Place: | Adelaide, South Australia |
| Death Place: | Black Forest, South Australia |
| Party: | Labor |
John Victor Ryan (born John Lattin; 1 December 1890 – 13 October 1974) was an Australian politician. Born in Adelaide, South Australia, he was educated at state schools before becoming a baker. He was secretary of the Baking Trades Employees' Union before becoming South Australian Labor Party Campaign Director 1928–1950. At the 1949 election he was elected to the Australian Senate as a Labor Senator for South Australia, commencing on 1 July 1950. He held the seat until his parliamentary retirement on 30 June 1959.[1] [2]
Ryan died in 1974.