Patrick Lynch may refer to:

• Patrick Neeson Lynch (1817–1882), Catholic bishop during the American Civil War
• Patrick Lynch (Roman Catholic bishop) (born 1947), Irish Roman Catholic bishop
• Patrick Lynch (Rhode Island attorney general) (born 1965), former Attorney General of Rhode Island
• Patrick Lynch (Irish attorney general) (1866–1947), Irish politician
• Patrick J. Lynch (biomedical illustrator) (born 1953), American author and artist
• Patrick Lynch (Argentina) (1715–1789), Irish ancestor of Che Guevara, born in Galway, emigrated to Argentina
• Patrick Lynch (Australian politician) (1867–1944), Senator
• Patrick Lynch (economist) (1917–2001), professor of economics at University College Dublin and chairman of Aer Lingus
• Patrick Lynch (Galway) (fl. 1659–1673), healed by a miracle
• P. J. Lynch (Patrick James Lynch, born 1962), Irish artist and children's book illustrator
• Patrick Lynch, a pseudonym for the authors Philip Sington and Gary Humphreys
• Patrick Lynch (police officer) (born 1964), head of the Patrolmen's Benevolent Association of the City of New York
• Patrick Lynch (educationalist), New Zealand educationalist
• Patrick Lynch, co-founder of Law School Transparency
• Pat Lynch (singer) (1933–2018), Irish showband singer
• Paddy Lynch (born 2000), Irish Gaelic footballer

• John M. Lynch (John M. "Pat" Lynch), Mayor of Somerville, Massachusetts and Chair of the Massachusetts Democratic Party