Dan Flynn (April 5, 1888 – 1946) was an American Boxer known as much for his ring skills as for his punch and dirty tactics.

He apparently earned the nickname "Porky" from his pre-boxing days working in a sausage factory.

He had a record of 26 wins (6 by knockout), 22 losses, 8 draws, and 36 no decisions.

In his career, he fought the likes of Jack Dempsey twice (losing both times by first round knockout), Fred Fulton (losing by foul in the 4th round), Joe Jeanette, and Battling Levinsky.

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