John J. Ryan, known as Jack, head football coach at Marquette University and the University of Wisconsin
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Jack F. T. Ryan (born 1916), Footscray and North Melbourne VFL footballer
Jack Kerouac | Jack Nicholson | Jack Nicklaus | Jack the Ripper | Jack London | Jack Kemp | Jack Kirby | Paul Ryan | Ryan Seacrest | Jack Lemmon | Jack Black | Jack Abramoff | Jack Dempsey | Jack Benny | Jack White | Wolfman Jack | Union Jack | Jack White (musician) | Jack and the Beanstalk | Ryan Gosling | Ryan Thomas | Ryan Adams | Meg Ryan | Jack Johnson | Jack Charlton | Jack Palance | Jack Daniel's | Jack | Saving Private Ryan | Ryan Giggs |
Edward "Ed" Kealty is a fictional character in Tom Clancy's Jack Ryan series of novels.
When Zarina bumps into Jack while walking with her "sex idiot," Ryan Lochte, she introduces them by their first names, saying "Jack, Ryan; Ryan, Jack." Jack Ryan is the name of Alec Baldwin's character in The Hunt for Red October, one of his first starring roles.