Harman married Jack Dromey in 1982 in Brent, after meeting him on the picket line of the Grunwick dispute in 1977; she was legal advisor to the Grunwick Strike Committee. They have two sons, Harry (born February 1983) and Joseph (born November 1984), and a daughter, Amy (born January 1987), with the latter having the surname "Harman". Labour colleague Patricia Hewitt is godmother to one of her children. She sent Harry to the grant-maintained Roman Catholic London Oratory School and Joseph to the state selective St Olave's Grammar School, Orpington. Harman has owned a number of houses and properties, including her home in Herne Hill, south London and a house in Suffolk.