The 2018 Harrow London Borough Council election took place on 3 May 2018 to elect members of Harrow London Borough Council in England. This was on the same day as other local elections in England. The Conservatives had hoped to win control of the council from Labour, but Labour emerged with an increased number of seats and kept their majority. The Liberal Democrats lost their only seat in the borough. The Conservatives lost seats to Labour, but maintained their total of 28 by winning two seats that had been held by independents.