Tim, Timmy or Timothy Ryan may refer to:
- Tim Ryan, alternative pseudonym of American Communist Party leader Eugene Dennis (1905–1961)
- Tim M. Ryan (born 1956), American Democratic Party legislator and county commissioner
- Tim Ryan (born 1973), American Democratic Party legislator and 2020 presidential candidate
Sportspeople
Others
- Tim Ryan (actor) (1889–1956), American performer and scenarist
- Timothy Ryan (newspaper publisher), American media executive (The Baltimore Sun)
- Tim Ryan (1949–2016), Canadian musician, co-founder of band Jackson Hawke
- Tim Ryan (engineer), American synthesizer engineer since 1970s, founder of M-Audio
- L. Timothy Ryan (born 1958), American chef and president of the Culinary Institute of America
- Tim Ryan (country musician) (born 1964), American country music singer-songwriter
- Tim Ryan (recovery advocate) (born 1968), American activist, drug abuse interventionist, author and speaker
Fictional characters