Hallinan is a surname. Notable people with the surname include:
Ed Hallinan (1888–1940), American baseball player Jimmy Hallinan (1849–1879), Irish baseball player Joseph Hallinan, American journalist and author Olivia Hallinan (born 1984), English actress Paul John Hallinan (1911–1968), American Catholic prelate Renae Hallinan (born 1986), Australian netball player Terence Hallinan (1936–2020), American attorney and politician from California Timothy Hallinan (born 1949), American thriller writer Vincent Hallinan (1896–1992), American lawyer and presidential candidate