John Tierney

John Tierney may refer to:

• John Tierney (Australian politician) (born 1946), Liberal member of the Australian Senate, 1991–2005
• John Tierney (Irish politician) (born 1951)
• John Tierney (journalist) (born 1953), American journalist
• John F. Tierney (born 1951), United States Representative from Massachusetts's 6th congressional district
• John Tierney (footballer), football player for Cork City
• John Tierney (Gaelic footballer), former Cavan Gaelic footballer