Sylvester Ryan may refer to:
- Sylvester Donovan Ryan (b. 1930), retired Roman Catholic bishop
- Sylvester J. Ryan (1896–1981), U.S. federal judge
- Sylvester Perry Ryan (1918-2001), Canadian lawyer and politician
This disambiguation page lists articles about people with the same name.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
If an internal link led you here, you may wish to change the link to point directly to the intended article.