Justin J. McCarthy (born 1945 in Passage West, County Cork) is an Irish former hurling manager and former player, who took over as manager of the Limerick senior inter-county team in October 2008. He played hurling with his local club Passage and with the Cork senior inter-county team in the 1960s and 1970s. As a player McCarthy was involved with the Cork team of the late 1960s. In a senior inter-county career that lasted from 1964 until 1974 he won one All-Ireland title, three Munster titles, two National Hurling League titles and two Railway Cup titles.