| Jack Londrigan | |
| Fullname: | John William Londrigan |
| Nickname: | Jack |
| Birth Date: | 3 February 1890 |
| Birth Place: | Goodwood, South Australia |
| Death Place: | North Adelaide, South Australia |
| Originalteam: | Christian Brothers College |
| Position: | Defender |
| Club1: | Sturt |
| Years1: | 1907–1910 |
| Games Goals1: | 46 (0) |
| Club2: | Adelaide University (SAAFL) |
| Years2: | 1911 |
| Games Goals2: | ? (?) |
| Club3: | Port Adelaide |
| Years3: | 1912–1914 |
| Games Goals3: | 42 (0) |
| Games Goalstotal: | 88 (0) |
| Sooteam1: | South Australia |
| Soogames Goals1: | 1 |
| Statsend: | 1910 |
| Careerhighlights: |
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John William Londrigan (3 February 1890 – 22 August 1937) was an Australian rules football player from South Australia.
Initially Londrigan played for the Sturt Football Club but after strong rumours that University would soon be admitted to the SAFL, thereby eliminating the bye, he left the club.[1]
However, after it became apparent that University would not be admitted to the SAFL he left to join the Port Adelaide Football Club in 1912.
Impressing in his first year he was appointed captain in 1912. Subsequently, he was captain of the 1913 and 1914 Port Adelaide Football Club side who were one of the sports greatest ever teams. He is the only player to twice captain victorious Champions of Australia teams. His career ended with the onset of World War I.